Richard Chamberlain
— Nat Bridger
John Houseman
— Stanley Markowitz
Sara Botsford
— Ridley Taylor
Robin Gammell
— Noah Clayton
Gary Reineke
— Lt. Meara
Barry Morse
— Fred Waites
Alan Scarfe
— John Websole
James B. Douglas
— Jack Gilsdorf
Ken Pogue
— Fil Thorner
Neil Munro
— Winters
Jefferson Mappin
— Photographer
Tom Butler
— Detective Tamblyn
Colin Fox
— Dr. Alderman
Luba Goy
— Beth Freemantle
Lenore Zann
— Connie Lawson
Antony Parr
— Guard