Sylvester is a character in the Looney Tunes franchise. He is a cat who is Tweety Bird's archenemy.
Most of the time, Sylvester is the main antagonist of the Tweety Bird episodes.
He was also Porky Pig's cowardly pet cat in Chuck Jones' shorts.
Sylvester can also have good intentions such as trying to protect Porky Pig from danger all around him in Chuck Jones' shorts and teaming up with the other Looney Tunes to defeat the Monstars in Space Jam.
Sylvester is also the archenemy of a very fast mouse named Speedy Gonzales.
American animator, illustrator, and director, Robert McKimson gave Sylvester a son named Sylvester Jr.
Sometimes Sylvester talks and sometimes he doesn't.