- This is one of the very few minor-character puppets with a so-called "blinker" head.
- Harris’s first name is “Frank”. He is referred to by this name once by Camp - “I have them, Frank...”
- The same puppet (with added moustache) played the part of Alfred in The Perils of Penelope. In The Impostors, it is seen as a passenger aboard Fireflash. It appears as a croupier in The Duchess Assignment on both visits.