The Royal Tweetums (voiced by the late Joe Alaskey) is the royal descendant of Tweety Bird. Like his ancestor, he takes great pleasure in tormenting Sylth Vester, and is responsible for multiple injuries inflicted upon the cat. He is highly fond of Danger Duck, and is not fully aware that the hero truly dislikes him at first.
His home Planet Blanc (a reference to Mel Blanc), was later invaded by Rubes Oberon, Optimatus, and Deuce, and he mysteriously disappears during the attack. His personality is nearly a carbon copy of the original Tweety Bird. Twice in his first appearance, he says "I'm only thwee and a half parsecs old"; a reference to both Tweety's catchphrase of "I'm only thwee and a half years old" and the apparent use of parsecs as a measurement of time in Star Wars.
- Much like ancestor Tweety in his very first 1940s incarnations, Tweetums is self-centered and runs around getting into danger, is very obnoxious, and causes all sorts of pain and suffering for anyone who happens to get caught in the crossfire.