Johnny Ghost

Johnny Ghost is a paranormal investigator, part of the Paranormal Investigators Extraordinaire (or P.I.E.). He was featured in some videos, searching for Kermit the Frog. He has an Apprentice named Johnny Toast. Johnny Ghost has also chased props running around live. Johnny has also investigated Jimmy Casket's asylum with the Acachalla family.

Johnny Ghost is Jimmy Casket and Gregory.Gregory, although he may not know it. He transforms into him when he is threatened, as shown in raptor player model mod, and when he bleeds, as shown in one of the Creepypasta videos (the "Creepypasta College" video, eggs-actly), similar to how Papa Acachalla changes into Jose Jose Jose Jose.

Johnny is said to maybe be Billy's true father. Consequently, depending on if Billy and Yakface are biological sibling or if they are adopted siblings, he may also be Yakface's father.

Personality
Johnny Ghost is very level-headed most of the time, although he does respond to danger. He studies paranormal activities, hence he knows a lot about such things. when around Johnny Toast, he acts braver than usual. He acts like a mentor figure to Johnny Toast, teaching Toast as he goes on.

Johnny Toast
Johnny Toast is Ghost's assistant and apprentice. They are both good friends. Johnny Ghost usually finds himself teaching Toast about paranormal activities.

Amii
Due to a misunderstanding, Amii has a crush on Johnny Ghost. She likes him because he is smart.

Jimmy Casket
When Johnny Ghost is threatened, he turns into Jimmy Casket. When he turns back to normal, he might not remember anything about being Jimmy Casket.

Gregory.Gregory
He sometimes turns into Gregory.Gregory.

Trivia
Starts with "Hello, I'm Johnny Ghost, paranormal investigator..." in a scared voice.
 * Since he is Gregory.Gregory, who is a ghost, it is ironic that he is a paranormal investigator.
 * He might be Gregory as Venturian said.
 * Johnny Ghost has a (short, but intro-worthy) third appearance in a horror map that
 * His hair is really messy.
 * He has nightmares about Amii.