Fredbear

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Fredbear, also known as Spring Freddy, is a springlock suit originating from Fredbear's Family Diner. He was apart of a band alongside Spring Bonnie, and was the catalyst and perpetrator of the Bite at his location.

The history of this animatronic is very mysterious and nothing is concrete about this character's existence. We haven't gotten a solid physical appearance of Fredbear yet. We've only seen his merchandise, adventure form and a physical form in Ultimate Custom Night.

Description
Fredbear is a golden bear animatronic with cyan, brown or no eyes, and a black or brown nose. He has lighter patches on his snout, ears and chest. He wears a purple top hat, purple bow-tie and wields a microphone in a similar vain to his successor, Freddy Fazbear. He also might have buttons on his chest. It's likely he has five fingers like his partner Spring Bonnie.

In Five Nights at Freddy's 3, we're introduced to a golden bear which is most likely Fredbear. This rendition however had a brown hat, black bow tie and black eyes with white pupils. This eye variation also carries onto Fredbear's plushies and merchandise, as shown in Five Nights at Freddy's 4, Five Nights at Freddy's: Sister Location and official merchandise material. It also carries over to his appearance in Ultimate Custom Night.

Five Nights at Freddy's 2
While not appearing physically, Fredbear is merely mentioned by the Phone Guy on the Night 5 phone call. Phone Guy mentions Fredbear's Family Diner, and claims that the company was closed for years.

Five Nights at Freddy's 3
Fredbear supposedly appears in the Stage01 minigame as the golden bear partnering alongside Spring Bonnie. It's Fredbear's task to get a cake to a crying child out of bounds.

He also cameos in the glitch minigame as one of the minigames glitched to.

Ultimate Custom Night
Fredbear is a minor antagonist in Ultimate Custom Night.

Theories
It's heavily speculated among the community that Fredbear is actually Golden Freddy. Both animatronics are a golden bear with a microphone and often featured with black/no eyes with white pupils. Golden Freddy also appears to be a suit and Fredbear is a springlock suit. Fredbear and Golden Freddy also share the same textures in FNaF World with the exception of the eyes, and accessories.