Richard Attenborough

David Wilton

Jack Watling

John Aynesworth

David Tomlinson

Smith

Edward G. Robinson

Dean McWilliams

Hugh Wakefield

Acting Lieutenant

Ronald Squire

Group Captain on Aircrew Interview Board

Derek N. Twist

Wing Commander on Aircrew Interview Board

Reginald Tate

Commanding Officer, Initial Training Wing

John Justin

Flying Instructor, Flying Grading School

Sebastian Shaw

Squadron Leader Marshall

Ronald Adam

Commanding Officer at Falcon Field

Bessie Love

Mrs. Mary McWilliams

Fletcher Markle

Staff Pilot, Canadian Navigation School

Peter Bayliss

Wireless Instructor, Canadian Navigation School

Patrick Waddington

Flight Lt. Mander

George Cole

Curley, Bomb Aimer, Lancaster Crew

Murray Matheson

Lancaster Crew

Rex Harrison

Guest (uncredited)

Miles Malleson

(uncredited)