David Janssen
— Harry Adams
Allen Garfield
— Herbie Stolz
Linda Evans
— Amy Kessler
John Randolph
— Marian's Father
Neva Patterson
— Marian's Mother
Anthony Eisley
— Joe Anasto
Stefanie Powers
— Marian Adams
James Keach
— McEnerney
Charles Siebert
— Spence
Ahna Capri
— Charleen
Lance LeGault
— Kaufman
Kenneth Tobey
— Mohr
John Finnegan
— O'Neil
Lionel Decker
— Christos
Antony Alda
— Neft
Ivy Bethune
— Mrs. Schneider
Marilyn Coleman
— Maid
Paul Tulley
— Oliver
Kopi Sotiropulos
— Room-Service Waiter
Richard McKenzie
— Dr. Steinberg