|Intro||Music box rendition from Five Nights at Freddy's 2|
|Signs of nearing||Footsteps|
|Origin||Five Nights at Freddy's 2|
|Map(s)||Return to Freddy's|
|Partners|| Toy Freddy, Toy Bonnie, Toy Chica, Mangle, Balloon Boy, The Puppet (sometime)|
Withered Bonnie, Withered Chica, Withered Foxy, Withered Golden Freddy
Withered Freddy is a boss in Slender Fortress.
Out of all of the original animatronics, Freddy seems to be the least damaged. His old appearance was being seen best in the first promotional image released by Scott Cawthon, the game's developer. In-game, it is explained that he has gone through an attempted retrofit, but was left unfinished after the management chose to make Toy Freddy.
His overall appearance is unchanged, but small differences are visible - mainly the buttons added to his chest, and the more visible stitching on the underside of his arms. Most notably, however, is the damage on his arms similar to that of Foxy's, showing parts of his endoskeleton. He also seems to be lacking kneecaps. Additionally, both of his knees are damaged; with visible wires poking out of his left knee. His body segment is also smaller and his hat is removable, as it is seen sitting on the floor next to him in the Parts/Service room.
This time around, Freddy has an upper set of teeth, while his head appears far blockier. His freckles are gone, his eyebrows are thinner, and he has embossed inner ears. His eyes are in a slight different position, meaning one of his eyes go up and down, and also seem to have been placed deeper within the mask. Also, his muzzle appears to be smaller and much rounder. The reason for his disrepair is either from neglect by the old company or the fact that he was simply used for parts, as he was just old and outdated.