Happy Valley's James Norton joins third series of BBC comedy Jerk
Joining Renkow, who stars as Tim, a man who uses his cerebral palsy to get away with saying and doing just about anything, are James Norton (Happy Valley), Lee Ridley (Christmas Comedy Club With Lost Voice Guy), Sally Phillips (Bridget Jones's Diary), Lydia Fleming (In from the Cold) and Gary Beadle (Andor).