We don't have a biography for John Mackey yet. Hang in there, or go ahead and contribute one.
Appearances
Dallas
Guest cast, played by Richard Herd
- Episode 4x06: The Venezuelan Connection (Dec 5, 1980)
- Episode 4x08: Trouble at Ewing 23 (Dec 19, 1980)
- Episode 4x09: The Prodigal Mother (Jan 2, 1981)