Egghead Jr. is a minor character of 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 sees that Egghead Jr. is smarter than him, and he is a little jealous.
- Little Boy Boo (1954)
- Feather Dusted (1955)
- Crockett-Doodle Doo (1960)
- Hog-Wild Hamton (1992) (cameo)
- Space Jam (1996) (cameo)
- Star Warners (1998) (cameo)
- Tweety's High Flying Adventure (2000) (cameo)
- 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 in 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. In the end, he blew up Hamton's house. Hamton started to cry and told Plucky that's his fault because he called everybody to party at Hamton's 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 prayed for a man to stop with his annoying laughing because he must work for tomorrow science project. Man continued to laugh, and Egghead Jr. touched his weakness. The man started screaming.