David Tennant

RD Laing

Elisabeth Moss

Angie Wood

Michael Gambon

Sidney Kotok

Gabriel Byrne

Jim

David Bamber

John Meredith

Olivia Poulet

Maria

Adam Paul Harvey

Paul Zemmell

Jerome Holder

John Holding

Linda Hargreaves

Mrs Holding

Cia Allan

Mrs Walker

Trevor White

Bryan

James Utechin

Sam

Nigel Barber

Dr Bloom

Paul Hunter

Glasgow Consultant

Alex Walton

Sean

Caitlin Innes Edwards

Mrs Kotok

Leo Heller

Young Sidney

Philip Gascoyne

Psychiatrist

Victor Ptak

Psychiatrist

Stephen Schreiber

Psychiatrist

David Annen

Psychiatrist

Helen Belbin

Amelia Laing