- Acting for Two: Ian Richardson plays three characters in separate episodes; Major Neuheim (all except 3 and 6), English Double Agent Melfort (episode 3), and Scottish villain Stan (episode 6). Not counting a brief cameo as a waiter in the last episode. All of these characters foil Schultz's attempts to keep any of the forged notes for himself, even the waiter.
- Died During Production: Although he survived to complete the scripts, Jack Pullman died before seeing the series produced, and before he could finish the novelisation.
Trivia / Private Schulz