Richard Long
— Jerry Carter
Polly Bergen
— Sylvia Carter
Edward Albert
— James Radney
Kate Jackson
— Mary Frances Radney
Celeste Holm
— Elizabeth Mason
Tom Bosley
— David Mason
Michael Constantine
— Dr. Burke
Cesare Danova
— Captain Vettori
Amzie Strickland
— Lynn
Alain Patrick
— Barrere
Maurice Sherbanee
— Room Steward
Wesley Gale
— Hotel Clerk (as West Gale)
Marc de Vries
— Deck Steward