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Drama about two school children who start a grime crew.
The second series about a group of midwives based in East London in the 1950s.
Feature length opening episode of Series 25 of BBC1's prime time medical drama set in a hosptial emergency ward
Sit com co-written with Tom Bidwell set in a children's cancer ward
BBC1's popular long running hospital drama
Writer of multiple episodes of the BBC's long running hospital drama, his episode for Series 22 was nominated for a BAFTA
Mark has been lead writer and a consultant producer on the BBC's popular flagship medical drama since 2007, during which time the show has been BAFTA nominated three times
BBC1's long running day-time drama set in a GP practice.
Original comedy drama about two gay couples who decide to have children
BBC1's weekly hospital drama
John is a Leeds cab-driver, it seems that every fare he picks up today confirms that relationships don't work out, but will his third fare change his mind?
Original play about a reformed heroin addict trying to improve the estate where she lives
Arthur Conan Doyle's legendary sleuth is live on stage, in a gripping, brand-new case written by Mark Catley.
A new stage adaptation of the "Queen of Teen" Louise Rennison's Fab Confessions of Georgia Nicolson
Original full length play, Danny has to pay off his debts by the evening or have his legs broken
Original full length play, Paul and Marie had a baby as teenagers, doubting his fitness to be a parent a grown up Paul prepares to meet his child
Original full length play, premiered at West Yorkshire Playhouse