Johnny Ghost

Johnny Ghost (born Gregory Casket) is an American paranormal investigator and the co-creator of the Paranormal Investigators Extraordinaire (or P.I.E., for short) with his lifelong friend (and company owner) Johnny Toast. He periodically gets possessed by a demon named Jimmy Casket. (Often mistaken for Dissociative Identity Disorder, which he's confirmed not to have by Jordan and the fact he does not fit the criteria required)