Giovanni E. 'Johnny' Columbo
Gene Kelly
Isabella Gomboli
Teresa Celli
Louis Lorelli
J. Carrol Naish
Benny Danetta / Nino
Mario Siletti
Caesar Xavier Serpi
Marc Lawrence
Carlo Sabballera
Frank Puglia
Capt. Thompson
Barry Kelley
George Allani / Tomasino
Carl Milletaire
Maria Columbo
Eleonora von Mendelssohn
Recording Supervision
Douglas Shearer
Director
Richard Thorpe
Costume Design
Walter Plunkett
Makeup Artist
Jack Dawn
Set Decoration
Edwin B. Willis
Art Direction
Cedric Gibbons
Hairstylist
Sydney Guilaroff
Writer
Luther Davis
Editor
Cotton Warburton
Producer
William H. Wright
Story
Leo Townsend
Director of Photography
Paul Vogel
Original Music Composer
Alberto Colombo
Special Effects
Warren Newcombe
Gabriel Scognamillo
Assistant Set Decoration
Charles DeCrof