Pat O'Brien

Character: Michael O'Flaherty 'Speed' McBride

Adolphe Menjou

Character: Kismet

Ellen Drew

Character: Connie McBride

Rudy Vallee

Character: Gordon Tolliver

Fortunio Bonanova

Character: Prof. Zorado

Joseph Crehan

Character: Dr. James P. Whitney

Jonathan Hale

Character: Osborne

Minna Gombell

Character: Aunt Sophie

Jason Robards Sr.

Character: Henry Fletcher

Jack Norton

Character: William T. Lafferty

Robert Homans

Character: Uncle Barney McBride (uncredited)

Tom Kennedy

Character: Bartender (uncredited)

Carl Switzer

Character: Ignatius Lafferty (uncredited)