I was thinking of characters that originated as cartoons, not those that originated elsewhere & were adapted into cartoons.
My mistake on Polly Peabody, I was definitely thinking of Underdogs girlfriend, Sweet Polly Purebred.
Mr. Magoo
George, Jane and Judy Jetson
Phonetically, George Jetson works. Close enough!I'll give you credit for Mr. Magoo since that was the title of the cartoon, even though the character's given name was Quincy Magoo.
Credit, also, for Jane & Judy Jetson; but not for George.
Richie Rich
He started out as a comic book character, not a cartoon.
Olive Oyl
Augie doggie
Grape ape
Cobra Commander
Phonetically, George Jetson works. Close enough!