Sylvester J. Pussycat, Jr., or simply Sylvester Junior, is an animated cartoon character in the Warner Bros. Looney Tunes and Merrie Melodies series. He is the son of Sylvester The Cat. His mother is never seen nor mentioned in any of the Warner Bros. shorts. Junior first appeared in the 1949 short Pop 'Im Pop!, directed by Robert McKimson and eventually appeared in a total of 11 shorts in the Golden age. His voice was provided by Mel Blanc until his death in 1989, and later by Joe Alaskey.
Physically, Junior is basically a miniature version of his father, having a large head in proportion to a small body. Junior has been noted saying that he is three and a half years old.
Junior's personality reflected a degree of respect for his father, though often, when Sylvester does something embarrassing or humiliating, Junior would (melodramatically) often profess feeling ashamed or embarrassed by his father's behavior (sometimes donning a paper bag over his head) or sadly saying, in a breathy voice, "Oh, Father..." or "How can I ever face the fellows in Troop 12?"
Often, Sylvester and Junior's shorts would feature Sylvester trying to capture Hippety Hopper, a baby kangaroo, to prove a point to his son. Each attempt at capture, of course, failed miserably, owing to Sylvester's invariably mistaking the kangaroo for a "giant mouse", and as such being taken completely by surprise by the kangaroo's athletic prowess, with Sylvester losing every fight, often in spectacularly humiliating fashion. In one particular ship based short Junior was able to outdo his father by capturing Hippety, playing on Hippety's playful nature. Though Tweet Dreams was the only pairing of Junior and Tweety in the Looney Tunes shorts, it was not a direct one; Junior basically served as a flashback image.
Sylvester Jr. appeared in the following shorts:
After the original Looney Tunes shorts, Junior would show up sporadically in later years. In the 1990s animated series Sylvester and Tweety Mysteries, Sylvester has a flashback to his childhood in the episode "A Mynah Problem"; in the flashback sequence, as with Tweet Dreams, Sylvester resembled his son physically. He also appears in Space Jam. He is seen in one of the "Mysterious Phenomenon of the Unexplained" shorts of the Stranger Than Fiction Looney Tunes web shorts compilation DVD alongside his father on a camping trip interrupted by Bigfoot. He will later appear in The Looney Tunes Show voiced by Jeff Bergman and will help his father to catch Tweety.