Sharon Horgan

Nicci

Michael Sheen

Andrew

Alison Oliver

Katie

Niamh Moriarty

Marnie

Noma Dumezweni

Samantha

Chizzy Akudolu

Mercy

Des McAleer

Eddie

Gary Beadle

Frank

Jack Morris

Tom

Pippa Haywood

Judge Spottiswood

Shane Zaza

Fred

Lucian Msamati

Derek

Lisa McGrillis

Brenda

Mat Fraser

Greg

Anneika Rose

Francesca

Billie Gadsdon

Young Katie

Melissa Collier

Alice

Michael Keillor

Director

Jenny Frayn

Producer

Jack Thorne

Executive Producer

Jack Thorne

Writer