The Creeper is a superhero created by Steve Ditko and Don Segall for DC Comics. He is portrayed as a journalist and talk show host, usually living in Gotham City, who gains the ability to transform into the superhuman the Creeper thanks to experimental science developed by Dr. Yatz.
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.