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.
Movies & TV Shows
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The Nevers (2021) — Orderly
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8 Out of 10 Cats Does Countdown (2013) — Dean - Dictionary Corner
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Reaper (2000) — Doctor
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Lee and Dean (2018) — Dean
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Swan (2020) — Ted
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My Sexual Abuse: The Sitcom (2024) — Self
- My Sexual Abuse: The Sitcom (The Actual Sitcom) (2024) — Mark
- Comedy Blaps (2011) — Vic