Douglas Fairbanks
— Daniel Boone Brown
Albert MacQuarrie
— Hobson
Kathleen Clifford
— Lucette Bancroft
Frank Campeau
— Mark Drake
Ralph Lewis
— Curtis Brown
Herbert Grimwood
— Dr. Ulrich Metz
Daisy Jefferson
— Bobby De Vere
Bull Montana
— The Nightmare
Victor Fleming
— Himself
Thomas J. Geraghty
— Himself
William C. McGann
— Himself
Harris Thorpe
— Himself
George Kuwa
— Elevator Operator
Babe London
— Switchboard Operator