Spring

"Hey.. uhh... I've heard there is something roaming the place.. I think its a... fox endoskeleton..? It definitely doesen't belong to uh.. Mangle.. or Foxy... but It's... something..." Phone Guy talking about Spring in the night 3 phone call, in FNAF2.

Appearance
Spring looks like a fox endoskeleton with yellow eyes, she is missing one ear, and has wires coming out of it, she is also missing one of her hands.

MORE TO BE ADDED
THIS IS A WORK IN PROGRESS