Mark O'Sullivan
Acting
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

In the last years of Victoria's reign, London is beset by the "Touched": people — mostly women — who suddenly manifest abnormal abilities, some charming, some very disturbing. Among them are Amalia True, a mysterious, quick-fisted widow, and Penance Adair, a brilliant young inventor. They are the champions of this new underclass, making a home for the Touched, while fighting the forces of… well, pretty much all the forces — to make room for those whom history as we know it has no place.
The Nevers

Jimmy Carr hosts proceedings as the 8 Out of 10 Cats crew take over the words and numbers quiz.
8 Out of 10 Cats Does Countdown
Comedy Blaps is Channel 4's vehicle for piloting comedy online. Some pilots consist of a single short, whereas others consist of a few shorts.
Comedy Blaps

Stevenage-based builders Lee and Dean are brothers from other mothers, inseparable best friends since they first met at school. That is until Lee meets and falls in love with Nikki and she moves into their flat.
Lee and Dean

Horror novelist Luke Sinclair retreats to a small town to finish writing his latest book. A young woman is murdered in the woods nearby, in circumstances similar to those in his bestselling novel, "Reaper". Faced with increasing pressure from a suspicious local sheriff, as well as the advances of a female FBI investigator, he must uncover the killer before he or she strikes again, further implicating him in the crime.
Reaper

Ian has achieved such a high level of British citizenship that he is to be transformed into a swan. We follow Ian and his wife Donna in their preparations for this transformation.
Swan

Comedian Mark O'Sullivan researches and writes a sitcom about the sexual abuse he survived as a child, and the court case that led to the conviction of the man who abused him.
My Sexual Abuse: The Sitcom
The actual sitcom, based on the experiences of creator Mark O'Sullivan, a survivor of childhood sexual abuse, who joins an all-star cast including Cariad Lloyd and Ellie Taylor before a live audience