Cast
A.E. Anson
Professor Max Gottlieb
Gibson Gowland
Committee Member (uncredited)
Clarence Brooks
Dr. Oliver Marchand
Myrna Loy
Joyce Lanyon
Erville Alderson
Pioneer (uncredited)
Cyril Delevanti
Committee Member (uncredited)
John Qualen
Henry Novak (uncredited)
Nora Cecil
Nurse (uncredited)
Claude King
Dr. Tubbs
Bert Roach
Bert Tozer
Carl M. Leviness
Ship's Passenger (uncredited)
Pat Somerset
Ship's Officer (uncredited)
Helen Hayes
Leora Tozer Arrowsmith
Raymond Hatton
Drunk (uncredited)
Bobby Watson
Little Neighbor (uncredited)
Richard Bennett
Gustav Sondelius
Russell Hopton
Terry Wickett
Theresa Harris
Native Mother (uncredited)
Charlotte Henry
Pioneer Girl (uncredited)
DeWitt Jennings
B.W. Tozer (uncredited)
Kendall McComas
Little Johnny (uncredited)
Ronald Colman
Dr. Martin Arrowsmith
Sidney De Gray
Dr. Hesselink (uncredited)
George Humbert
Italian Uncle (uncredited)
Mike Lally
Reporter (uncredited)
James A. Marcus
Old Doctor (uncredited)
Adele Watson
Mrs. Novak (uncredited)
Ward Bond
Cop (uncredited)
Alec B. Francis
Twyford
David Landau
State Veterinarian
Lumsden Hare
Sir Robert Fairland
Beulah Bondi
Mrs. Tozer (uncredited)
Florence Britton
Miss Twyford (uncredited)
Eric Mayne
Dignitary at Luncheon (uncredited)