Underdog is a cartoon character.
IggY!
· Underdog
ArthurAquamanAstro BoyAtom
Ursula
Jughead, Jane Jetson, The Joker and Jerry (Tom & Jerry) are cartoon/comic book characters. They begin with the letter J.
Archie Andrews
gilgamesh gretel
Jiminy Cricket
fox, ferret
Itchy, from Itchy and Scratchy (Simpsons)
Paramulous Ghost.
Lord of the rings - Aragon