Robert Goulet as Ross Kingsley

Jill St. John as Sherry Nugent

Robert Morse as Jason Menlow

Anne Helm as Cynthia Hampton

Keenan Wynn as Mr. Sampson

Elvia Allman as Mrs. Sampson

Chris Noel as Nancy Penrose

Nancy Kwan as Lynn Hope

Elsa Lanchester as Chambermaid

Bernard Fox as Room Clerk

Sandra Gould as Mabel, Switchboard Operator

Dolores Faith as Mrs. Fendelmeyer

Sal Ponti as Mr. Howard

David Lewis as Mr. Hampton

Jane Wald as Mrs. Jones

William Keene as Mr. Johnson

Paulene Myers as Hogan (Uncredited)