diff --git a/dotnet/samples/03-workflows/Agents/FoundryAgent/Program.cs b/dotnet/samples/03-workflows/Agents/FoundryAgent/Program.cs
index cab2e0162d..91d52398f9 100644
--- a/dotnet/samples/03-workflows/Agents/FoundryAgent/Program.cs
+++ b/dotnet/samples/03-workflows/Agents/FoundryAgent/Program.cs
@@ -53,6 +53,18 @@ private static async Task Main()
                 {
                     Console.WriteLine($"{executorComplete.ExecutorId}: {executorComplete.Data}");
                 }
+                else if (evt is WorkflowErrorEvent workflowError)
+                {
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                    Console.ResetColor();
+                }
+                else if (evt is ExecutorFailedEvent executorFailed)
+                {
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                    Console.ResetColor();
+                }
             }
         }
         finally
diff --git a/dotnet/samples/03-workflows/Agents/GroupChatToolApproval/Program.cs b/dotnet/samples/03-workflows/Agents/GroupChatToolApproval/Program.cs
index 0b6b821f9f..c6d41b031b 100644
--- a/dotnet/samples/03-workflows/Agents/GroupChatToolApproval/Program.cs
+++ b/dotnet/samples/03-workflows/Agents/GroupChatToolApproval/Program.cs
@@ -134,6 +134,18 @@ private static async Task Main()
 
                     break;
                 }
+
+                case WorkflowErrorEvent workflowError:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                    Console.ResetColor();
+                    break;
+
+                case ExecutorFailedEvent executorFailed:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                    Console.ResetColor();
+                    break;
             }
         }
 
diff --git a/dotnet/samples/03-workflows/Checkpoint/CheckpointAndRehydrate/Program.cs b/dotnet/samples/03-workflows/Checkpoint/CheckpointAndRehydrate/Program.cs
index 7bc5621fbe..49752e256d 100644
--- a/dotnet/samples/03-workflows/Checkpoint/CheckpointAndRehydrate/Program.cs
+++ b/dotnet/samples/03-workflows/Checkpoint/CheckpointAndRehydrate/Program.cs
@@ -58,6 +58,19 @@ private static async Task Main()
             {
                 Console.WriteLine($"Workflow completed with result: {outputEvent.Data}");
             }
+
+            if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
 
         if (checkpoints.Count == 0)
@@ -86,6 +99,19 @@ private static async Task Main()
             {
                 Console.WriteLine($"Workflow completed with result: {workflowOutputEvt.Data}");
             }
+
+            if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 }
diff --git a/dotnet/samples/03-workflows/Checkpoint/CheckpointAndResume/Program.cs b/dotnet/samples/03-workflows/Checkpoint/CheckpointAndResume/Program.cs
index 07be486620..510fb9f345 100644
--- a/dotnet/samples/03-workflows/Checkpoint/CheckpointAndResume/Program.cs
+++ b/dotnet/samples/03-workflows/Checkpoint/CheckpointAndResume/Program.cs
@@ -55,6 +55,19 @@ private static async Task Main()
             {
                 Console.WriteLine($"Workflow completed with result: {workflowOutputEvt.Data}");
             }
+
+            if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
 
         if (checkpoints.Count == 0)
@@ -80,6 +93,19 @@ private static async Task Main()
             {
                 Console.WriteLine($"Workflow completed with result: {workflowOutputEvt.Data}");
             }
+
+            if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 }
diff --git a/dotnet/samples/03-workflows/Checkpoint/CheckpointWithHumanInTheLoop/Program.cs b/dotnet/samples/03-workflows/Checkpoint/CheckpointWithHumanInTheLoop/Program.cs
index 56b4da9911..4dcf097468 100644
--- a/dotnet/samples/03-workflows/Checkpoint/CheckpointWithHumanInTheLoop/Program.cs
+++ b/dotnet/samples/03-workflows/Checkpoint/CheckpointWithHumanInTheLoop/Program.cs
@@ -62,6 +62,16 @@ private static async Task Main()
                 case WorkflowOutputEvent workflowOutputEvt:
                     Console.WriteLine($"Workflow completed with result: {workflowOutputEvt.Data}");
                     break;
+                case WorkflowErrorEvent workflowError:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                    Console.ResetColor();
+                    break;
+                case ExecutorFailedEvent executorFailed:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                    Console.ResetColor();
+                    break;
             }
         }
 
@@ -92,6 +102,16 @@ private static async Task Main()
                 case WorkflowOutputEvent workflowOutputEvt:
                     Console.WriteLine($"Workflow completed with result: {workflowOutputEvt.Data}");
                     break;
+                case WorkflowErrorEvent workflowError:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                    Console.ResetColor();
+                    break;
+                case ExecutorFailedEvent executorFailed:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                    Console.ResetColor();
+                    break;
             }
         }
     }
diff --git a/dotnet/samples/03-workflows/Concurrent/MapReduce/Program.cs b/dotnet/samples/03-workflows/Concurrent/MapReduce/Program.cs
index 9049bde982..5d7ab5b688 100644
--- a/dotnet/samples/03-workflows/Concurrent/MapReduce/Program.cs
+++ b/dotnet/samples/03-workflows/Concurrent/MapReduce/Program.cs
@@ -119,6 +119,18 @@ private static async Task RunWorkflowAsync(Workflow workflow)
                     }
                 }
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 }
diff --git a/dotnet/samples/03-workflows/ConditionalEdges/01_EdgeCondition/Program.cs b/dotnet/samples/03-workflows/ConditionalEdges/01_EdgeCondition/Program.cs
index 370011d80f..57a026b4a5 100644
--- a/dotnet/samples/03-workflows/ConditionalEdges/01_EdgeCondition/Program.cs
+++ b/dotnet/samples/03-workflows/ConditionalEdges/01_EdgeCondition/Program.cs
@@ -69,6 +69,18 @@ private static async Task Main()
             {
                 Console.WriteLine($"{outputEvent}");
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 
diff --git a/dotnet/samples/03-workflows/ConditionalEdges/02_SwitchCase/Program.cs b/dotnet/samples/03-workflows/ConditionalEdges/02_SwitchCase/Program.cs
index 4e85039af8..9b1a8d3d05 100644
--- a/dotnet/samples/03-workflows/ConditionalEdges/02_SwitchCase/Program.cs
+++ b/dotnet/samples/03-workflows/ConditionalEdges/02_SwitchCase/Program.cs
@@ -85,6 +85,18 @@ private static async Task Main()
             {
                 Console.WriteLine($"{outputEvent}");
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 
diff --git a/dotnet/samples/03-workflows/ConditionalEdges/03_MultiSelection/Program.cs b/dotnet/samples/03-workflows/ConditionalEdges/03_MultiSelection/Program.cs
index 3dfb13bf60..6eac1cbcd9 100644
--- a/dotnet/samples/03-workflows/ConditionalEdges/03_MultiSelection/Program.cs
+++ b/dotnet/samples/03-workflows/ConditionalEdges/03_MultiSelection/Program.cs
@@ -98,6 +98,19 @@ private static async Task Main()
             {
                 Console.WriteLine($"{databaseEvent}");
             }
+
+            if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 
diff --git a/dotnet/samples/03-workflows/HumanInTheLoop/HumanInTheLoopBasic/Program.cs b/dotnet/samples/03-workflows/HumanInTheLoop/HumanInTheLoopBasic/Program.cs
index 0b85757435..30a53c771f 100644
--- a/dotnet/samples/03-workflows/HumanInTheLoop/HumanInTheLoopBasic/Program.cs
+++ b/dotnet/samples/03-workflows/HumanInTheLoop/HumanInTheLoopBasic/Program.cs
@@ -42,6 +42,18 @@ private static async Task Main()
                     // The workflow has yielded output
                     Console.WriteLine($"Workflow completed with result: {outputEvt.Data}");
                     return;
+
+                case WorkflowErrorEvent workflowError:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                    Console.ResetColor();
+                    return;
+
+                case ExecutorFailedEvent executorFailed:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                    Console.ResetColor();
+                    break;
             }
         }
     }
diff --git a/dotnet/samples/03-workflows/Loop/Program.cs b/dotnet/samples/03-workflows/Loop/Program.cs
index dba811d84c..3631eebe32 100644
--- a/dotnet/samples/03-workflows/Loop/Program.cs
+++ b/dotnet/samples/03-workflows/Loop/Program.cs
@@ -39,6 +39,18 @@ private static async Task Main()
             {
                 Console.WriteLine($"Result: {outputEvent}");
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 }
diff --git a/dotnet/samples/03-workflows/Observability/ApplicationInsights/Program.cs b/dotnet/samples/03-workflows/Observability/ApplicationInsights/Program.cs
index a05a5cddf6..3d8d61b8a4 100644
--- a/dotnet/samples/03-workflows/Observability/ApplicationInsights/Program.cs
+++ b/dotnet/samples/03-workflows/Observability/ApplicationInsights/Program.cs
@@ -67,6 +67,18 @@ private static async Task Main()
             {
                 Console.WriteLine($"{executorComplete.ExecutorId}: {executorComplete.Data}");
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 }
diff --git a/dotnet/samples/03-workflows/Observability/AspireDashboard/Program.cs b/dotnet/samples/03-workflows/Observability/AspireDashboard/Program.cs
index 23fcfe5f4e..9e5a396656 100644
--- a/dotnet/samples/03-workflows/Observability/AspireDashboard/Program.cs
+++ b/dotnet/samples/03-workflows/Observability/AspireDashboard/Program.cs
@@ -69,6 +69,18 @@ private static async Task Main()
             {
                 Console.WriteLine($"{executorComplete.ExecutorId}: {executorComplete.Data}");
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 }
diff --git a/dotnet/samples/03-workflows/SharedStates/Program.cs b/dotnet/samples/03-workflows/SharedStates/Program.cs
index ebe3aaeb3b..c8532676e6 100644
--- a/dotnet/samples/03-workflows/SharedStates/Program.cs
+++ b/dotnet/samples/03-workflows/SharedStates/Program.cs
@@ -39,6 +39,18 @@ private static async Task Main()
             {
                 Console.WriteLine(outputEvent.Data);
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 }
diff --git a/dotnet/samples/03-workflows/_StartHere/01_Streaming/Program.cs b/dotnet/samples/03-workflows/_StartHere/01_Streaming/Program.cs
index 81ca2f3276..6193d1c8f6 100644
--- a/dotnet/samples/03-workflows/_StartHere/01_Streaming/Program.cs
+++ b/dotnet/samples/03-workflows/_StartHere/01_Streaming/Program.cs
@@ -35,6 +35,18 @@ private static async Task Main()
             {
                 Console.WriteLine($"{executorCompleted.ExecutorId}: {executorCompleted.Data}");
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 }
diff --git a/dotnet/samples/03-workflows/_StartHere/02_AgentsInWorkflows/Program.cs b/dotnet/samples/03-workflows/_StartHere/02_AgentsInWorkflows/Program.cs
index d0bc5d4749..eee12e03ef 100644
--- a/dotnet/samples/03-workflows/_StartHere/02_AgentsInWorkflows/Program.cs
+++ b/dotnet/samples/03-workflows/_StartHere/02_AgentsInWorkflows/Program.cs
@@ -56,6 +56,18 @@ private static async Task Main()
             {
                 Console.WriteLine($"{executorComplete.ExecutorId}: {executorComplete.Data}");
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
     }
 
diff --git a/dotnet/samples/03-workflows/_StartHere/03_AgentWorkflowPatterns/Program.cs b/dotnet/samples/03-workflows/_StartHere/03_AgentWorkflowPatterns/Program.cs
index 7e6fb55be7..ddead5023f 100644
--- a/dotnet/samples/03-workflows/_StartHere/03_AgentWorkflowPatterns/Program.cs
+++ b/dotnet/samples/03-workflows/_StartHere/03_AgentWorkflowPatterns/Program.cs
@@ -111,6 +111,18 @@ static async Task<List<ChatMessage>> RunWorkflowAsync(Workflow workflow, List<Ch
                     Console.WriteLine();
                     return output.As<List<ChatMessage>>()!;
                 }
+                else if (evt is WorkflowErrorEvent workflowError)
+                {
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                    Console.ResetColor();
+                }
+                else if (evt is ExecutorFailedEvent executorFailed)
+                {
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                    Console.ResetColor();
+                }
             }
 
             return [];
diff --git a/dotnet/samples/03-workflows/_StartHere/05_SubWorkflows/Program.cs b/dotnet/samples/03-workflows/_StartHere/05_SubWorkflows/Program.cs
index 7f9980e047..05b0db7f0d 100644
--- a/dotnet/samples/03-workflows/_StartHere/05_SubWorkflows/Program.cs
+++ b/dotnet/samples/03-workflows/_StartHere/05_SubWorkflows/Program.cs
@@ -74,6 +74,18 @@ private static async Task Main()
                 Console.WriteLine($"Final Output: {output.Data}");
                 Console.ResetColor();
             }
+            else if (evt is WorkflowErrorEvent workflowError)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                Console.ResetColor();
+            }
+            else if (evt is ExecutorFailedEvent executorFailed)
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                Console.ResetColor();
+            }
         }
 
         // Optional: Visualize the workflow structure - Note that sub-workflows are not rendered
diff --git a/dotnet/samples/03-workflows/_StartHere/06_MixedWorkflowAgentsAndExecutors/Program.cs b/dotnet/samples/03-workflows/_StartHere/06_MixedWorkflowAgentsAndExecutors/Program.cs
index 2359a1f10e..64993b1590 100644
--- a/dotnet/samples/03-workflows/_StartHere/06_MixedWorkflowAgentsAndExecutors/Program.cs
+++ b/dotnet/samples/03-workflows/_StartHere/06_MixedWorkflowAgentsAndExecutors/Program.cs
@@ -156,6 +156,18 @@ private static async Task ExecuteWorkflowAsync(Workflow workflow, string input)
                 case WorkflowOutputEvent:
                     // Workflow completed - final output already printed by FinalOutputExecutor
                     break;
+
+                case WorkflowErrorEvent workflowError:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                    Console.ResetColor();
+                    break;
+
+                case ExecutorFailedEvent executorFailed:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                    Console.ResetColor();
+                    break;
             }
         }
     }
diff --git a/dotnet/samples/03-workflows/_StartHere/07_WriterCriticWorkflow/Program.cs b/dotnet/samples/03-workflows/_StartHere/07_WriterCriticWorkflow/Program.cs
index 0d8ffbf1cf..4665f09f6f 100644
--- a/dotnet/samples/03-workflows/_StartHere/07_WriterCriticWorkflow/Program.cs
+++ b/dotnet/samples/03-workflows/_StartHere/07_WriterCriticWorkflow/Program.cs
@@ -115,6 +115,18 @@ private static async Task ExecuteWorkflowAsync(Workflow workflow, string input)
                     Console.WriteLine();
                     Console.WriteLine(new string('=', 80));
                     break;
+
+                case WorkflowErrorEvent workflowError:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine(workflowError.Exception?.ToString() ?? "Unknown workflow error occurred.");
+                    Console.ResetColor();
+                    break;
+
+                case ExecutorFailedEvent executorFailed:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.Error.WriteLine($"Executor '{executorFailed.ExecutorId}' failed with {(executorFailed.Data == null ? "unknown error" : $"exception {executorFailed.Data}")}.");
+                    Console.ResetColor();
+                    break;
             }
         }
     }