Egghead Jr. is a minor character in the Looney Tunes and Merrie Melodies franchise.
He is the bookish son of Miss Prissy. He loves to read books and he is pretty clever. In Foghorn Leghorn cartoons, he is a rival of Foghorn Leghorn, who is babysitting him. Foghorn tries to teach him how to play various games, and Egghead Jr. always beats him in every game.
- Little Boy Boo (1954)
- Feather Dusted (1955)
- Crockett-Doodle Doo (1960)
- Hog-Wild Hamton (1992)
- Space Jam (1996) (cameo)
- Star Warners (1998) (cameo)
- Tweety's High Flying Adventure (2000)
- Looney Tunes: Back In Action (2003) (cameo)
- Bah, Humduck! A Looney Tunes Christmas (2006) (cameo)
- Best Friends Redux (2014) (cameo)
He serves as the main antagonist of Tiny Toon Adventures episode "Hog-Wild Hamton". Plucky called everybody to party at Hamton's house. They were listening very loud music. That music disturbs Hamton's neighbour, Egghead Jr., who immediately started war with them. At the end, he blew up Hamton's house. Hamton started to cry and told Plucky that's his fault because he called everybody to have a party at his house. Fortunately, when Hamton's parents back, a man gave them a new house because they won in the prize game. Man started laughing. His laugh disturbed Egghead Jr. Egghead Jr. told him to stop with his "annoying" laughing because he must work for his science project. Man continued to laugh, and Egghead Jr. touched his weak spot for a revenge. The man started to scream.