Gary Cooper
as Colonel Clint Maroon

Ingrid Bergman
as Clio Dulaine

Flora Robson
as Angelique Buiton

Jerry Austin
as Cupidon

John Warburton
as Bartholomew Van Steed

Florence Bates
as Sophie Bellop

Curt Bois
as Augustin Haussy

John Abbott
as Roscoe Bean

Ethel Griffies
as Clarissa Van Steed

Al Bridge
as Soule Gang Engineer (uncredited)

James Carlisle
as Costume Ball Attendee (uncredited)

Gino Corrado
as Diner (uncredited)