George Sanders as Clementi Sabourin

Yvonne De Carlo as Bridget Kelly

Zsa Zsa Gabor as Mrs. Ryan

Victor Jory as Leonard Wilson

Nancy Gates as Stephanie North

Coleen Gray as Mrs. Edith Van Renasslear

John Hoyt as Mr. O'Hara

Lisa Ferraday as Zina Monte

Tom Conway as Gerry Monte aka Sabourin

Celia Lovsky as Mrs. Sabourin (Clementi's mother)

Werner Klemperer as Herbert Bauman (Clementi's lawyer)

Justice Watson as Henry (Clementi's butler)

John Sutton as The Actor as 'Tom' in Stage Play

Curtis Cooksey as Oswald Van Renassalear

Gabriel Curtis as Max Freundlich (as Gabriel Curtiz)

George Brent as Man with Balloon at Party

Dick Gordon as Party Guest (uncredited)