Springbonnie (or The Yellow Rabbit) is an old springlock suit used by the owner of Freddy Fazbear's Pizza, William Afton, to abduct and murder  children in his establishment. Springbonnie is a yellow rabbit with blue eyes, two black buttons on the stomach, and a purple bowtie. Springbonnie was originally designed to be a happy-go-lucky, kind and sweet mascot but the man who wears it is a cold, methodical calculating serial killer who hides behinds a smug, chill and calm facade.