Cast principale
Harold Lloyd
Harold Bledsoe
Barbara Kent
Billie Lee
Noah Young
Patrick Clancy SFPD
Charles Middleton
John Thorne / The Dragon
Will Walling
Captain Walton, SFPD 3rd Div.
Grady Sutton
Man at Party (silent version) (scenes deleted)
Brooks Benedict
Handcuffed Prisoner at Police Station (uncredited)
Eddy Chandler
Cop (uncredited)