Johnny Ghost/PIE related theories

1.The Jackson theory
This theory states that the character Jackson from the Joker Babysits video is another personality of Johnny Ghost/Jimmy Casket/Gregory.Evidence supporting this claim includes him turning into Jimmy in the video.

2.The John Smigglebug theory
This theory states that John Smigglebug,who is Billy Acachalla and Yakface's real father,is another personality of Johnny/Jimmy/Gregory,there is not much evidence for this but it seems likely.If this theory is true it would greatly impact the Ghost/Casket and Acachalla family trees.

3.The Johnny Ghost is Billy's Father theory
This theory is basically a variation of the above theory except that there is no John Smigglebug and Katrina is Billy and Yakface's mother.

4.The Johnny Ghost Shapeshifter theory
This theory basically explains why when Ghost becomes his alternate personalities he looks different.It says that he changes forms when he becomes a different personality

5.The Maxwell is Billy's Father theory
this theory states that Maxwell Acachalla may in fact be Billy's father

6.The Jimmy Casket killed Sally's Family theory
Jimmy himself says he did this in a video but Sally's family members do appear occasionally.