- KAOS Agent - Keith Hefner
- King Charles - Don Adams (uncredited)
- Rupert of Rathskeller - James Caan (credited as "Himself")
- Colonel Von Klaus - John Doucette
- Deliveryman - Allan Kent
Weapons and Gadgets
- Caronian Embassy
- The title refers to the 1967 film (based on the 1959 novel) and hit song To Sir, with Love.