John Levings
Bart Quillan (as Rockcliffe Fellows)
Joe Maestro
Friend Helping Tommy (uncredited)
Curly Bogard
Mr. Stone
Martin Doremus
J.J. 'Big Joe' Helton
Detective-Sergeant Mather
Police Captain Fred O'Reilly
Richard Talbot
John Blake
George Taylor
Bob Mason
Stephen Bates
Underwood
Arthur Bennett
Phil Powers
Del Cole
Nick Nash
Clyde Bainbridge
Sir Melmoth Craven
/ Sir Bruce Haden
Harry Anderson
Phillip Flagg
Dave Tolliver
Dr. Langwell
Dr. Robert Mason
Matthews
Mr. Schofield
Angus Campbell
Tom Levitt
Jim Barston (a bushrider) / Jim Barston (heir to Barston Manor)
Jack Berry
Jack Garrison
Davidge
John Miller
John Randolph
Owen [at 25] Conway
