Kim Darby as Sally Farnham

Jim Hutton as Alex Farnham

William Demarest as Mr. Harris

Barbara Anderson as Joan Kahn

Pedro Armendáriz Jr. as Francisco Perez

Lesley Woods as Ethyl

Robert Cleaves as Doctor

Sterling Swanson as Policeman

Joel Lawrence as George Kahn

William Sylvester as Tom Henderson

Don Mallon as Bob

Celia Milius as Anne

Elizabeth St. Clair as Party Guest

Monika Henreid as Party Guest

Robert Priester as Party Guest

Ted Swanson as Bartender

Felix Silla as Creature

Tamara De Treaux as Creature

Patty Maloney as Creature