Slip Mahoney
Leo Gorcey
Sach Jones
Huntz Hall
Digger
Eddie Gribbon
Karl
Hans Schumm
Franz Drum
Gene Roth
T.P. Williams
Emmett Vogan
Messenger Boy
Buddy Gorman
Dr. Franz Lieber
John Bleifer
Ryan, Building Manager
William Ruhl
Dr. Latka
Leonid Snegoff
Gabe Moreno
Gabriel Dell
Count Boris Petrov
Martin Kosleck
Terrence Mahoney
Paul Harvey
Teresa Mahoney
Amelita Ward
Whitey
William Benedict
Chuck
David Gorcey
Sandra Hasso
Jacqueline Dalya
Butch
Benny Bartlett
Director
William Beaudine
Screenplay
Tim Ryan
Art Direction
Dave Milton
Story
Talbert Josselyn
Producer
Jan Grippo
Set Decoration
Raymond Boltz Jr.
Production Manager
William A. Calihan Jr.
Editor
William Austin
Sound Recordist
Earl Sitar
Director of Photography
Marcel Le Picard
Supervising Film Editor
Otho Lovering
Music Director
Edward J. Kay
Edmond Seward