Louis Wolheim
— Dan Thorn
Robert Armstrong
— Larry Doyle
Jean Arthur
— Mary Ryan
Hugh Herbert
— Professor
Frank Sheridan
— Ed Ryan
Robert Edeson
— Tom Johnson
Alan Roscoe
— Jim
William P. Burt
— Chief Dispatcher
Jim Farley
— Joe Geraghty
James Donlan
— Picnic Barker (uncredited)
Frank Mills
— Hobo (uncredited)
Lee Phelps
— Railroad Worker (uncredited)