Jean Simmons
as Sarah Brown
Frank Sinatra
as Nathan Detroit
Vivian Blaine
as Miss Adelaide
Robert Keith
as Lt. Brannigan
B.S. Pully
as Big Jule
Sheldon Leonard
as Harry the Horse
Regis Toomey
as Arvide Abernathy
Johnny Silver
as Benny Southstreet
Dan Dayton
as Rusty Charlie
Kathryn Givney
as General Cartwright
Earle Hodgins
as Pitchman (uncredited)