Si and Am are Aunt Sarah's twin Siamese cats and the main, but later true secondary antagonists from Disney's 1955 film Lady and the Tramp.
Trivia[]
- They are made to look like the film's main antagonists but are never seen again after halfway into the film. The movie's real villain is the Rat.
- In early drafts of the film, Si and Am were supposed to go up against the rat, and be defeated.