- “Mummy, my cat's breath smells like cat food.”
- ―Prince Charles quoting Ralph.
Charles, Prince of Wales (Charles Philip Arthur George; born November 14, 1948) is a member of the British royal family and the current Prince of Wales, making him the heir apparent to the throne of the sixteen Commonwealth Realms.
Along with his mother, Queen Elizabeth II, he used to watch scenes from Springfield through the surveillance cameras planted around the town. The Queen said that Ralph reminded her of Charles since he says a known Ralph quote: "My cat's breath smells like cat food." Prince Charles was on the cover of Mama's Boy's Life. He is also one of the many people on "Ned's List of Laudable Lefties".
- Episode – "Last Exit to Springfield" (picture)
- Episode – "To Surveil With Love"
- Episode – "Haw-Haw Land" (picture)
- Comic book – Hail to the Cat
- Comic book – 3000's Company
- Book – Flanders' Book of Faith (mentioned)