Johnny Cousin
Patrick McGoohan
Cass Michaels
Keith Michell
Himself - Bass
Charles Mingus
Himself - Trumpet
Bert Courtley
Himself - Trombone
Keith Christie
Himself - Guitar
Ray Dempsey
Himself
John Dankworth
Girl (uncredited)
Jennifer White
Emily
Betsy Blair
Aurelius Rex
Paul Harris
Delia Lane
Marti Stevens
Rod Hamilton
Richard Attenborough
Lou Berger
Bernard Braden
Phales
Harry Towb
Benny
María Velasco
Himself - Piano
Dave Brubeck
Director
Basil Dearden
Co-Producer
Producer
Michael Relph
Writer
Paul Jarrico
Nel King
Publicist
Diana Hawkins
Executive Producer
Bob Roberts
Art Direction
Ray Simm
Editor
John D. Guthridge
Original Music Composer
Philip Green
Director of Photography
Edward Scaife
Focus Puller
Wally Fairweather