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).
William Jonathan Drayton Jr. (born March 16, 1959), better known by his stage name Flavor Flav, is an American musician, rapper, actor, television personality, and comedian who rose to prominence as a member of the hip-hop group Public Enemy. He is also known for popularizing the role of the hype man and for yelling Yeah boy! and Flavor Flav!