Who created the character that William Arnold "Billy" Costello  voiced and appeared in the daily King Features comic strip?
Popeye Popeye the Sailor is a cartoon fictional character created by Elzie Crisler Segar. The character first appeared in the daily King Features comic strip, Thimble Theatre, on January 17, 1929, and Popeye became the strip's title in later years; Popeye has also appeared in theatrical and television animated cartoons.
Howard the Duck Howard the Duck is a fictional character appearing in American comic books published by Marvel Comics. The character was created by writer Steve Gerber and artist Val Mayerik. Howard the Duck first appeared in "Adventure into Fear" #19 (cover-dated Dec. 1973) and several subsequent series have chronicled the misadventures of the ill-tempered, anthropomorphic "funny animal" trapped on a human-dominated Earth.