Mark O'Sullivan
Biography
Mark O'Sullivan is a producer, actor, and writer known for Tell Me Everything (2022), Lee and Dean (2017) and My Sexual Abuse: The Sitcom (The Actual Sitcom) (2024). Mark won an RTS award in 2025 for his documentary (and sitcom episode) My Sexual Abuse: The Sitcom, made by Swan Films for Channel 4, was awarded the best Arts programme for 2025.
Known For
Acting History
2024
My Sexual Abuse: The Sitcom as Self
2024My Sexual Abuse: The Sitcom (The Actual Sitcom) as Mark
2021The Nevers as Orderly
2018Lee and Dean as Dean
20138 Out of 10 Cats Does Countdown as Dean - Dictionary Corner
2011Comedy Blaps as Vic
2011Comedy Blaps as Grant
2011Comedy Blaps as Vic - Grant
2000Reaper as Doctor
—Swan as Ted