James Stewart

Charles Augustus 'Slim' Lindbergh

Murray Hamilton

Bud Gurney

Patricia Smith

Mirror Girl

Bartlett Robinson

Benjamin Frank Mahoney, President Ryan Airlines Co.

Marc Connelly

Father Hussman

Arthur Space

Donald Hall, Chief Engineer Ryan Airlines

Charles Watts

O.W. Schultz, Salesman Atlas Suspender Co.

Erville Alderson

Burt (uncredited)

Frances Allen

Mother from Oklahoma (uncredited)

David Alpert

Clerk (uncredited)

Walter Bacon

Crowd Member in France (uncredited)

Gordon Barnes

Reporter (uncredited)