Richard Attenborough

Character: Thomas Leslie Manning

Cathy O'Donnell

Character: Jill Manning

Derek Farr

Character: Peter Tanner

Ian Hunter

Character: Geoffrey Tanner

Maurice Denham

Character: Horace Clifford

Bruce Seton

Character: Detective Chief Inspector

Lily Kann

Character: Mrs. Adeline Zunz

Harry Welchman

Character: Justice Harrington

Kynaston Reeves

Character: Munro