Question: Which of the characters featured in Mickey's Once Upon a Christmas  is a fictional character who first appeared in Disney's "Pinocchio"?
Sentence (from "Phantom Blot"): He first appeared in the Mickey Mouse comic strip adventure "Mickey Mouse Outwits the Phantom Blot" by Floyd Gottfredson, which was published in the form of daily strips from May 20 to September 9, 1939.
Relevant evidence: No