In some ancient civilizations the Wolf was a symbol of the underworld. In Egypt, the guardian of the dead was Anubis who was a wolf-headed god. The jackal portrayed as black was the symbol of both death and regeneration.
William is also the one who hid inside the suits and kidnapped and killed children, leading to the assumption that William Afton is The Purple Guy of FNaF 2 and 3 (he is killed at the end of the book when Charlie sets off the spring locks in his suit).
David Joyner was the second Barney costume actor, performing in the suit from 1991 to 2001.For three years afterwards, he would train Barney actors around the world and make personal appearances as the purple guy.,150 pages on this wiki. David Joyner was the second Barney costume actor, performing in the suit from 1991 to 2001. For three years afterwards, he would train Barney actors around the world and make personal appearances as the purple guy.