Richard Burton
John Morlar
Lino Ventura
Brunel
Lee Remick
Doctor Zonfeld
Harry Andrews
Assistant Commissioner
Alan Badel
Barrister
Marie-Christine Barrault
Patricia
Jeremy Brett
Edward Parrish
Michael Hordern
Atropos - Fortune Teller
Gordon Jackson
Doctor Johnson
Michael Byrne
Duff
Derek Jacobi
Townley - Publisher
Malcolm Tierney
Deacon
Philip Stone
Dean
Robert Lang
Pennington
Avril Elgar
Mrs. Pennington
James Hazeldine
Lovelass
John Normington
Mr. Copley
Robert Flemyng
Judge McKinley
Norman Bird
Major Henry Morlar
Jennifer Jayne
Mrs. Morlar
Frances Tomelty
Nanny
George Innes
Van Driver
Ian Marter
Detective
Brook Williams
Male Nurse
Wendy Gifford
Receptionist
Shaw Taylor
TV Space Reporter
Gordon Honeycombe
TV Newscaster
Mark Jones
Sgt. Hughes
Maurice O'Connell
Sgt. Robbins
Victor Winding
Senior Police Officer
Anthony Blackett
Mounted Police Officer
Denyse Alexander
Hospital Doctor
John Flanagan
Police Constable
Stanley Lebor
Police Doctor
Cornelius Bowe
Young Morlar
Adam Bridges
10-Year-Old Morlar
Joseph Clark
14-Year-Old Morlar
Earl Rhodes
Parsons
Christopher Burgess
Pilot
Matthew Long
Co-Pilot
Colin Rix
Engineer
Malcolm Brownjohn
Man in Court Scene (uncredited)
Jeremy Coote
Policeman at Cathedral (uncredited)
Marc Furstenberg
Policeman (uncredited)
Clifford Harker
Organist (uncredited)
Guy Standeven
Teacher (uncredited)
David de Keyser
Brunel (voice) (uncredited)