John Emery

Georges Peydal

Norman Kingsley

Lawrence Price

The Pawnbroker

Paul Donaldson

Dr. Hubbell Eliot

Wheeler

Dr. Edward R. Winter

Cody Clark

Kerwin Drake

Abel Dennis

Rinaldi aka 'The Great Rinaldi'

Harold

Mr. Stewart (uncredited)

Professor

Governor Elden

Clyde Gorman

Dr. Karl Eckstrom

Vincent

Jean, Duke d'Alencon, cousin of Charles

John Newberry

Sir Percival Glyde

Larry Blake

George Harrington

Dr. Fleurot