导演 约翰·福特

Dr. Martin Arrowsmith Ronald Colman

Leora Tozer Arrowsmith Helen Hayes

Gustav Sondelius Richard Bennett

Professor Max Gottlieb A.E. Anson

Dr. Oliver Marchand Clarence Brooks

Twyford Alec B. Francis

Dr. Tubbs Claude King

Bert Tozer Bert Roach

Joyce Lanyon Myrna Loy

Terry Wickett Russell Hopton

State Veterinarian David Landau

Sir Robert Fairland Lumsden Hare

Pioneer (uncredited) Erville Alderson

Cop (uncredited) 埃德温·邦德

Mrs. Tozer (uncredited) 比尤拉·邦蒂

Miss Twyford (uncredited) Florence Britton

Nurse (uncredited) Nora Cecil

Dr. Hesselink (uncredited) Sidney De Gray

Committee Member (uncredited) Cyril Delevanti

City Clerk (uncredited) Walter Downing

Committee Member (uncredited) Gibson Gowland

Reporter (uncredited) Sherry Hall

Native Mother (uncredited) Theresa Harris

Drunk (uncredited) Raymond Hatton

Pioneer Girl (uncredited) Charlotte Henry

Italian Uncle (uncredited) George Humbert

B.W. Tozer (uncredited) DeWitt Jennings

Reporter (uncredited) Mike Lally

West Indies Townswoman at Meeting (uncredited) Lillian Lawrence

Ship's Passenger (uncredited) Carl M. Leviness

Old Doctor (uncredited) James A. Marcus

Dignitary at Luncheon (uncredited) Eric Mayne

Little Johnny (uncredited) Kendall McComas

Ship's Passenger (uncredited) Edmund Mortimer

Henry Novak (uncredited) 约翰·奎尔伦

Dignitary (uncredited) Edward Reinach

Intern (uncredited) Milton Royce

Bartender (uncredited) Harry Schultz

Ship's Officer (uncredited) Pat Somerset

Mrs. Novak (uncredited) Adele Watson

Little Neighbor (uncredited) Bobby Watson

Ship's Officer (uncredited) Eric Wilton