Grant Withers
饰 Officer Pat O'Hara
Adrian Morris
饰 Officer Sam Maloney
Kay Hughes
饰 Molly Selkirk
Mickey Rentschler
饰 Pinky Adams
Gordon Hart
饰 W.H. Harrison
Frank Lackteen
饰 Mr. Tahata, alias Warner the Great
C. Montague Shaw
饰 Mr. Wellington
Harry Davenport
饰 John P. Adams, inventor
Wheeler Oakman
饰 Stevens, gang chemist
Max Hoffman Jr.
饰 Harry Selkirk
Jack Mulhall
饰 Desk Sergeant
Earl Dwire
饰 Jeremiah Crockett
Leonard Lord
饰 Franklin, the real Tahata
Dick Botiller
饰 Henchman Zutta
Louis Vokali
饰 Henchman / Off-screen Trainer of Silver Wolf
