Rock Hudson character Dr. Bartholomew Snow
Claudia Cardinale character Vicky Vicenti
Jack Warden character General George Pratt
Guy Stockwell character James Fitzpatrick
Anne Seymour character Miss Smith ("Smitty")
Alejandro Rey character Arthur Vincenti
Brad Dexter character Harrigan
Vito Scotti character Michelangelo Vincenti
Ted Knight character Dr. Bob Berford
Angela Clarke character Lavinia Vincenti
John Megna character Mario Vincenti
Ned Glass character Lippy
Hari Rhodes character Davis
Mort Mills character Henchman
Jack De Mave character Henchman