Top Billed Cast

1. 

   Ronald Colman

   Dr. Martin Arrowsmith

2. 

   Helen Hayes

   Leora Tozer Arrowsmith

3. 

   Richard Bennett

   Gustav Sondelius

4. 

   A.E. Anson

   Professor Max Gottlieb

5. 

   Clarence Brooks

   Dr. Oliver Marchand

6. 

   Alec B. Francis

   Twyford

7. 

   Claude King

   Dr. Tubbs

8. 

   Bert Roach

   Bert Tozer

9. 

   Myrna Loy

   Joyce Lanyon

10. 

    Russell Hopton

    Terry Wickett

11. 

    David Landau

    State Veterinarian

12. 

    Lumsden Hare

    Sir Robert Fairland

13. 

    Erville Alderson

    Pioneer (uncredited)

14. 

    Ward Bond

    Cop (uncredited)

15. 

    Beulah Bondi

    Mrs. Tozer (uncredited)

16. 

    Florence Britton

    Miss Twyford (uncredited)

17. 

    Nora Cecil

    Nurse (uncredited)

18. 

    Sidney De Gray

    Dr. Hesselink (uncredited)

19. 

    Cyril Delevanti

    Committee Member (uncredited)

20. 

    Walter Downing

    City Clerk (uncredited)

21. 

    Gibson Gowland

    Committee Member (uncredited)

22. 

    Sherry Hall

    Reporter (uncredited)

23. 

    Theresa Harris

    Native Mother (uncredited)

24. 

    Raymond Hatton

    Drunk (uncredited)

25. 

    Charlotte Henry

    Pioneer Girl (uncredited)

26. 

    George Humbert

    Italian Uncle (uncredited)

27. 

    DeWitt Jennings

    B.W. Tozer (uncredited)

28. 

    Mike Lally

    Reporter (uncredited)

29. 

    Lillian Lawrence

    West Indies Townswoman at Meeting (uncredited)

30. 

    Carl M. Leviness

    Ship's Passenger (uncredited)

31. 

    James A. Marcus

    Old Doctor (uncredited)

32. 

    Eric Mayne

    Dignitary at Luncheon (uncredited)

33. 

    Kendall McComas

    Little Johnny (uncredited)

34. 

    Edmund Mortimer

    Ship's Passenger (uncredited)

35. 

    John Qualen

    Henry Novak (uncredited)

36. 

    Edward Reinach

    Dignitary (uncredited)

37. 

    Milton Royce

    Intern (uncredited)

38. 

    Harry Schultz

    Bartender (uncredited)

39. 

    Pat Somerset

    Ship's Officer (uncredited)

40. 

    Adele Watson

    Mrs. Novak (uncredited)

41. 

    Bobby Watson

    Little Neighbor (uncredited)

42. 

    Eric Wilton

    Ship's Officer (uncredited)