George Callahan

Scenárista:

1. 1. Charlie Chan in the Secret Service (1944), film
   ...
   (original screenplay)
2. 2. The Scarlet Clue (1945), film
   ...
   (original screenplay)
3. 3. The Cisco Kid (1950), seriál
   ...
   (screenplay) and
4. 4. I'll Get You for This (1951), film
   ...
   (screenplay) and
5. 5. This Island Earth (1955), film
   ...
   (screenplay)