Top Billed Cast

1. 

   Richard Carlson

   Dr. Geoffrey Burton

2. 

   Nancy Kelly

   Pat Lindsay

3. 

   Albert Bassermann

   Dr. Storm

4. 

   Miles Mander

   Professor Langer

5. 

   Edward Gargan

   Officer Charlie Prescott

6. 

   Adrian Morris

   Officer John Prescott

7. 

   Martin Kosleck

   George Taylor

8. 

   Walter Kingsford

   Heydt

9. 

   Cy Kendall

   Dahlig

10. 

    Nestor Paiva

    Grube

11. 

    Oscar O'Shea

    Pa Prescott

12. 

    Mary Gordon

    Ma Prescott

13. 

    Arthur Loft

    Inspector Karns

14. 

    Marion Martin

    Nurse

15. 

    Clem Bevans

    Station Watchman

16. 

    John Butler

    Detective Jenks

17. 

    John Dilson

    Police Dr. Tracy

18. 

    Kate MacKenna

    Cook at Gas Station

19. 

    Gladys Blake

    Sales Clerk (Uncredited)

20. 

    Nell Craig

    Sales Clerk (Uncredited)

21. 

    Milton Kibbee

    Hotel Desk Clerk (Uncredited)

22. 

    Eddie Acuff

    Garage Attendantt (Uncredited)

23. 

    Stanley Blystone

    Policeman (Uncredited)

24. 

    Wade Boteler

    O'Brien (Uncredited)

25. 

    Eddie Dunn

    Police Sergeant (Uncredited)

26. 

    Pat Flaherty

    Taxi Driver at Station (Uncredited)

27. 

    J. Anthony Hughes

    Policeman at Garage (Uncredited)

28. 

    Si Jenks

    Gateman at Sanitarium (Uncredited)

29. 

    Paul McVey

    Cop on Small Town Street (Uncredited)

30. 

    Ella Neal

    Telephone Operator (Uncredited)

31. 

    Dick Rich

    Guard (Uncredited)

32. 

    Harry Tenbrook

    Truck Driver (Uncredited)

33. 

    William Wright

    Intern (Uncredited)