Leo Gorcey
— Muggs McGinnis
Huntz Hall
— Glimpy
William Benedict
— Skinny
Gabriel Dell
— Pete
June Carlson
— Jane Riley
Amelita Ward
— Rita Joyce
Addison Richards
— Police Commissioner James Mitchell
George Meeker
— Silk Henley
Johnny Duncan
— Gilbert Mitchell
Buddy Gorman
— Sammy (as Bud Gorman)
Fred Kelsey
— Mr. McGinnis, Sr. (as Fred Kelsy)
Douglas Wood
— Mayor
Milton Kibbee
— Police chief
Pat Gleason
— Little Pete Vargas
Robert Homans
— Police Sergeant Tom Riley
Patsy Moran
— Mrs. McGinnis
Alan Foster
— Whitey
Davison Clark
— Officer McGowan
Meyer Grace
— Jake