O Médico e a Irmã Monstro

Ralph Bates

Dr. Jekyll

Martine Beswick

Sister Hyde

Gerald Sim

Professor Robertson

Lewis Fiander

Howard

Susan Brodrick

Susan

Dorothy Alison

Mrs. Spencer

Ivor Dean

Burke

Philip Madoc

Byker

Irene Bradshaw

Yvonne

Neil Wilson

Older Policeman

Paul Whitsun-Jones

Sergeant Danvers

Tony Calvin

Hare

Dan Meaden

Town Crier

Virginia Wetherell

Betsy

Geoffrey Kenion

1st Policeman