Henry Huggins, Howard the Duck, Hector Heathcoat, and Harold Hill.
ArthurAquamanAstro BoyAtom
gilgamesh gretel
Jiminy Cricket
Not sure, so make them up, that's why they're fictional.
Jack Skelington from Nightmare Before Christmas
Batman BeetleJuice Barbrady Ben Rogers Blastoise Blob Ben (from LOST) The Bradys (Brady Bunch)
Annie (from the musical "Annie")
IggY!
xanadoo Xandanavia Xalex
· Underdog
Ursula
Some fictional characters whose names begin with "J" include James Bond, Jon Snow from "Game of Thrones," and Jane Eyre.