Sylvester's trademark is his sloppy, yet stridulating lisp. His famous catchphrase is "Sufferin' Succotash" which is said to be a minced saying for "Suffering Misses" (Daffy also says it from time to time). He is often referred to as a putty tat by Tweety and Senor Gringo Pussygato by Speedy Gonzales. His alternately confident and bewildered episodes bring his son to shame, while Sylvester himself is reduced to nervous breakdowns. Sylvester's most developed role is as a hapless mouse-catching instructor to his dubious son, Sylvester Junior, in which the "mouse" is a powerful baby kangaroo named " Hippety Hopper". (In these cartoons, he basically plays the terrified Costello to Porky's oblivious Abbott.)
He shows a different character when paired with Porky Pig in explorations of spooky places, in which he doesn't speak, as a scaredy cat. Coyote while they both try to catch Speedy Gonzales and Road Runner. In The Wild Chase, Sylvester is paired with Wile E.
Coyote as well as Sylvester/Tweety are parodies of a predatory cat and mouse pairing, foreshadowing his future pairing with Speedy Gonzales. Coyote, except that ironically Road Runner and Wile E. Despite his pride and persistence, Sylvester was definitely on the "loser" side of the Looney Tunes winner / loser hierarchy. Sylvester shows much pride and plenty of envy, and he also never gives up. Sylvester's first appearance in Life with Feathers (1945) Before Sylvester's appearance in the cartoons, Blanc voiced a character named Sylvester on The Judy Canova Show using the voice that would eventually become associated with the cat. The Hep Cat features another version, as well as Birdy and the Beast, which features Tweety Bird.
Notes to You was remade in color in one of Sylvester's cartoons, Back Alley Oproar. Sylvester predecessors appeared from 1939-1944.