Mark O'Sullivan

Known for: Acting

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. Where to watch the TV shows and films of Mark O'Sullivan free? Click the title of the series or movies below to watch them in HD for free on SFlix.