Frank Sinatra as Lieutenant Sam Loggins

Tony Curtis as Caporal Britt Harris

Natalie Wood as Monique Blair

Leora Dana as Mrs. Blair

Karl Swenson as The Colonel

Ann Codee as Mme. Brieux

Eddie Ryder as Caporal Lindsay

Jacques Berthe as Jean-François Dauval

Pete Candoli as Trumpet Player (uncredited)

Cyril Delevanti as Blairs' Butler (uncredited)

Richie Kamuca as Saxophonist (uncredited)

Mel Lewis as Drummer (uncredited)

Red Norvo as Vibraphonist (uncredited)

Mark Tapscott as Captain Harrison (uncredited)