Alice from Alice in wonderland
A cartoon character starting with A is Apu.
Kenny from South Park
itchy from "itchy and skratchy"
Bugs Bunny
elmer fudd
Mickey Mouse Minnie mouse
Charlie Brown (Peanuts)
the name is louis Lilo as in Lilo and Stitch
ariel...of the little mermaid ariel..of the little mermaid
Underdog?
Eeyore from Winnie The Pooh (Big) Ethel from Archie Comics
Betty Boop Bugs Bunny Barney Rubble