Terence Aloysius 'Slip' Mahoney
Horace Debussy 'Sach' Jones
Bobby
Whitey
Chuck
Cathy Smith
Ace Deuce Baker
Maizie (as Dawn Kennedy)
Detective O'Malley
Street Cleaner
Moose McCall (as Wee Willie Davis)
Henchman Spike
Mr. Johnson
Louie Dumbrowsky
Professor Schnackenberger
Feather-Fingers
Detective Dugan
Police Officer O'Hara