diff --git a/src/TestFramework/TestFramework/Assertions/Assert.ThrowsException.Core.cs b/src/TestFramework/TestFramework/Assertions/Assert.ThrowsException.Core.cs
index 27c9629f21..a81c307541 100644
--- a/src/TestFramework/TestFramework/Assertions/Assert.ThrowsException.Core.cs
+++ b/src/TestFramework/TestFramework/Assertions/Assert.ThrowsException.Core.cs
@@ -180,9 +180,10 @@ private static void ReportThrowsFailed<TException>(
 
             string expectedTypeLabel = isStrictType ? expectedTypeFullName : $"{expectedTypeFullName} (or derived)";
 
+            // The "actual exception:" line is already prefixed with the exception type name, so we don't emit a
+            // separate "actual type:" line to avoid duplicating that information.
             EvidenceBlock evidence = EvidenceBlock.Create()
                 .AddLine("expected type:", expectedTypeLabel)
-                .AddLine("actual type:", actualTypeFullName)
                 .AddLine("actual exception:", $"{actualTypeFullName}: {actualException.Message}");
 
             message = new StructuredAssertionMessage(summary)
diff --git a/test/UnitTests/TestFramework.UnitTests/Assertions/AssertTests.ThrowsExceptionTests.cs b/test/UnitTests/TestFramework.UnitTests/Assertions/AssertTests.ThrowsExceptionTests.cs
index a219c229e9..7b3c4a0749 100644
--- a/test/UnitTests/TestFramework.UnitTests/Assertions/AssertTests.ThrowsExceptionTests.cs
+++ b/test/UnitTests/TestFramework.UnitTests/Assertions/AssertTests.ThrowsExceptionTests.cs
@@ -75,7 +75,6 @@ public void ThrowsAsync_WhenExceptionIsNotExpectedType_ShouldThrow()
                 Assertion failed. Expected exception of type ArgumentException (or derived) but caught Exception.
 
                 expected type:    System.ArgumentException (or derived)
-                actual type:      System.Exception
                 actual exception: System.Exception: Exception of type 'System.Exception' was thrown.
 
                 Assert.ThrowsAsync<ArgumentException>(() => throw new Exception())
@@ -93,7 +92,6 @@ public void ThrowsExactlyAsync_WhenExceptionIsDerivedFromExpectedType_ShouldThro
                 Assertion failed. Expected exception of exact type ArgumentException but caught ArgumentNullException.
 
                 expected type:    System.ArgumentException
-                actual type:      System.ArgumentNullException
                 actual exception: System.ArgumentNullException: Value cannot be null.
 
                 Assert.ThrowsExactlyAsync<ArgumentException>(() => throw new ArgumentNullException())
@@ -152,7 +150,6 @@ Assertion failed. Expected exception of type ArgumentNullException (or derived)
                 message constructed via builder.
 
                 expected type:    System.ArgumentNullException (or derived)
-                actual type:      System.ArgumentOutOfRangeException
                 actual exception: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. (Parameter 'MyParamNameHere')
 
                 Assert.Throws<ArgumentNullException>(() => throw new ArgumentOutOfRangeException("MyParamNameHere"))
@@ -162,7 +159,6 @@ Assertion failed. Expected exception of type ArgumentNullException (or derived)
                 message constructed via builder.
 
                 expected type:    System.ArgumentNullException (or derived)
-                actual type:      System.ArgumentOutOfRangeException
                 actual exception: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
                                   Parameter name: MyParamNameHere
 
@@ -226,7 +222,6 @@ Assertion failed. Expected exception of exact type ArgumentNullException but cau
                 message constructed via builder.
 
                 expected type:    System.ArgumentNullException
-                actual type:      System.ArgumentOutOfRangeException
                 actual exception: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. (Parameter 'MyParamNameHere')
 
                 Assert.ThrowsExactly<ArgumentNullException>(() => throw new ArgumentOutOfRangeException("MyParamNameHere"))
@@ -236,7 +231,6 @@ Assertion failed. Expected exception of exact type ArgumentNullException but cau
                 message constructed via builder.
 
                 expected type:    System.ArgumentNullException
-                actual type:      System.ArgumentOutOfRangeException
                 actual exception: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
                                   Parameter name: MyParamNameHere
 
@@ -300,7 +294,6 @@ Assertion failed. Expected exception of type ArgumentNullException (or derived)
                 message constructed via builder.
 
                 expected type:    System.ArgumentNullException (or derived)
-                actual type:      System.ArgumentOutOfRangeException
                 actual exception: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. (Parameter 'MyParamNameHere')
 
                 Assert.ThrowsAsync<ArgumentNullException>(() => Task.FromException(new ArgumentOutOfRangeException("MyParamNameHere")))
@@ -310,7 +303,6 @@ Assertion failed. Expected exception of type ArgumentNullException (or derived)
                 message constructed via builder.
 
                 expected type:    System.ArgumentNullException (or derived)
-                actual type:      System.ArgumentOutOfRangeException
                 actual exception: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
                                   Parameter name: MyParamNameHere
 
@@ -374,7 +366,6 @@ Assertion failed. Expected exception of exact type ArgumentNullException but cau
                 message constructed via builder.
 
                 expected type:    System.ArgumentNullException
-                actual type:      System.ArgumentOutOfRangeException
                 actual exception: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. (Parameter 'MyParamNameHere')
 
                 Assert.ThrowsExactlyAsync<ArgumentNullException>(() => Task.FromException(new ArgumentOutOfRangeException("MyParamNameHere")))
@@ -384,7 +375,6 @@ Assertion failed. Expected exception of exact type ArgumentNullException but cau
                 message constructed via builder.
 
                 expected type:    System.ArgumentNullException
-                actual type:      System.ArgumentOutOfRangeException
                 actual exception: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
                                   Parameter name: MyParamNameHere
 
@@ -436,7 +426,6 @@ public void Throws_WhenExceptionMessageContainsNewline_ContinuationLinesAreInden
                 Assertion failed. Expected exception of type ArgumentException (or derived) but caught InvalidOperationException.
 
                 expected type:    System.ArgumentException (or derived)
-                actual type:      System.InvalidOperationException
                 actual exception: System.InvalidOperationException: line1
                                   line2
 
@@ -461,7 +450,6 @@ static void Action() => Assert.Throws<ArgumentException>(() =>
                 Assertion failed. Expected exception of type ArgumentException (or derived) but caught InvalidOperationException.
 
                 expected type:    System.ArgumentException (or derived)
-                actual type:      System.InvalidOperationException
                 actual exception: System.InvalidOperationException: oops
 
                 Assert.Throws<ArgumentException>(<action>)
@@ -481,7 +469,6 @@ public void Throws_WhenExpectedTypeIsGeneric_RendersFriendlyTypeName()
                 Assertion failed. Expected exception of type ThrowsTestGenericException<Int32> (or derived) but caught InvalidOperationException.
 
                 expected type:    Microsoft.VisualStudio.TestPlatform.TestFramework.UnitTests.ThrowsTestGenericException<System.Int32> (or derived)
-                actual type:      System.InvalidOperationException
                 actual exception: System.InvalidOperationException: oops
 
                 Assert.Throws<ThrowsTestGenericException<Int32>>(() => throw new InvalidOperationException("oops"))