Shadow Freddy is a mysterious shadow variant of Freddy Fazbear that appears in the Fnaf series, first debuting in Fnaf 2. Due to his in Easter Egg Five Nights at Freddy's 2 and his crucial role in the series, he seems to be more mysterious and rare than Shadow Bonnie.
Physical Appearance
Shadow Freddy has exactly the same appearance as Golden Freddy's "withered" appearance from Five Nights at Freddy's 2, albeit being recolored dark purple. Unlike Golden Freddy, he has large glowing bright eyes and teeth.
In Five Nights at Freddy's 3, Shadow Freddy lacks the glowing white effects for his eyes and teeth. Instead, his colors are sickly dark green; compared to these of the phantom animatronics.
Personality
Shadow Freddy's demeanor, other than seemingly mysterious like RWQFSFASXC, was left unexplored. His ordinary personality reveals to be nothing more than mysterious, dark, and not much is seemingly yet to be known about him.