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Leo Gorcey
Terence Aloysius 'Slip' Mahoney
Huntz Hall
Horace Debussy 'Sach' Jones
Bobby Jordan
Bobby
William Benedict
Whitey
David Gorcey
Chuck
Teala Loring
Cathy Smith
Sheldon Leonard
Ace Deuce Baker
Daun Kennedy
Maizie (as Dawn Kennedy)
James Burke
Detective O'Malley
Vince Barnett
Street Cleaner
William 'Wee Willie' Davis
Moose McCall (as Wee Willie Davis)
William Ruhl
Henchman Spike
Emmett Vogan
Mr. Johnson
Bernard Gorcey
Louie Dumbrowsky
Milton Parsons
Professor Schnackenberger
Lester Dorr
Feather-Fingers
William Newell
Detective Dugan
Eddie Dunn
Police Officer O'Hara
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