| Gender: Male|
Current Status: Alive
| Title: Dr. MacGill|
| Relatives: Pamela Crane (Daughter)|
Martin MacGill (Brother)
| First Appearance: My Johnny Lies Over the Ocean|
|Actor: Jason Evers|
Marshall MacGill is Jessica Fletcher's brother. He has only been seen once in My Johnny Lies Over the Ocean when he saw Jessica and his daughter off on the cruise.