We don't have a biography for Frank O'Sullivan yet. Hang in there, or go ahead and contribute one.
Appearances
Brooklyn Nine-Nine
Guest cast, played by John C. McGinley
- Episode 8x01: The Good Ones (Aug 12, 2021)
- Episode 8x03: Blue Flu (Aug 19, 2021)
- Episode 8x06: The Set Up (Aug 26, 2021)
- Episode 8x08: Renewal (Sep 2, 2021)