Mark O'Sullivan

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.

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  8 Out of 10 Cats Does Countdown

  Dean - Dictionary Corner

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  The Nevers

  Orderly

• Comedy Blaps

  Vic

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  Lee and Dean

  Dean

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  My Sexual Abuse: The Sitcom

  Self

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  Reaper

  Doctor

• My Sexual Abuse: The Sitcom (The Actual Sitcom)

  Mark

• 

  Swan

  Ted

• 2024My Sexual Abuse: The SitcomSelf
• 2024My Sexual Abuse: The Sitcom (The Actual Sitcom)Mark
• 2021The NeversOrderly
• 2020SwanTed
• 2018Lee and DeanDean
• 20138 Out of 10 Cats Does CountdownDean - Dictionary Corner
• 2011Comedy BlapsVic
• 2000ReaperDoctor