. The series also stars Romola Garai as Sam's mum, Jenny; Lara Peake as Sam's girlfriend, Chrissie; Earl Cave as Sam's best boyfriend, Oscar; Daniel Mays as Chrissie's father, Bill; and Richard Coyle as Sam's father, Peter. The series was written and created by Tracey Malone and Kate Ashfield, becoming Malone's second original television production following "Rillington Place".