World War II (cat next door)

From Peanuts Wiki

World War II, also known as "The Cat Next Door", is an off-screen cat character that terrorizes Snoopy and Woodstock. Whenever Snoopy mocks the cat from across the yard, the cat slashes Snoopy's Doghouse or sometimes, him. Charlie Brown usually ends up having to buy another doghouse, in the process.

Occassionlly, Snoopy will attack the cat off-screen if one (such as Woodstock) is in moral danger. However, he never succeeds and usually results in him getting beaten up or scratched up when he appears back on screen. Usually whenever the cat slashes at Snoopy, slash marks will often appear although in The Charlie Brown and Snoopy Show, his paw has been shown briefly a few times in "Snoopy's Foot" and "Blanket" (The short that consist of Snoopy and Linus trying to retrieve Linus' blanket back from next door after Sally's friend Eudora give it away to the cat). His paw appeared as orange in "Snoopy's Foot" but was white in "Blanket".