Robert 'Bobby' Stewart
Peter Firth
Henry Stewart
George Sewell
Gus Ashley
Allan Cuthbertson
Benjy
Arthur Hewlett
Charlie Todd
Spencer Banks
Susan Stewart
Cynthia Lund
Elizabeth (uncredited)
Candace Glendenning
Peter Pitt
Robin Langford
Tom Bowman
Steward
John Savident
Whiteman
Mark Edwards
Junkman
Patrick McAlinney
Insp. Cook
Patrick Allen
Billy
Andrew McCulloch
PC Andrew
George Woodbridge
Patrick Holt
Mrs. Maggie Stewart
Maggie Hanley
Insp. Timothy
George Innes
Mercer
Derek Newark
Finch
Dudley Sutton
Wheeler
Barry Jackson
Jock
Christopher Malcolm
Edwin Richfield
Sir Hilary Stanton
Richard Wattis
Lady Truesdale
Ambrosine Phillpotts
Director
Jerome Courtland
Producer
Ron Miller
Screenplay
William Robert Yates
Associate Producer
Hugh Attwooll
Music
Ron Goodwin
Cinematography
Michael Reed
Editor
Peter Boita
Casting
Maude Spector
Art Direction
Alex Vetchinsky
Set Decoration
Arthur Taksen