Alvin and the Chipmunks are cartoon characters. They begin with the letter A.
Yogi Bear, Ed Nortin
If you are referring to the cartoon characters from the Simpsons, the answer is Itchy, the cartoon mouse.
Underdog
animator
cubby gummi
Louis Lane and Lex Luther are Superman cartoon characters. Lucy and Linus are Peanuts cartoon characters.
Drak Pack
Gh? charecters? no no no.
Snoopy
ichigo kurosaki
Barney Rubble, Elmer Fudd, Fred Flintstone, Popeye and Wilma Flintstone are cartoon characters. They are adults.