The Unknown

The Unknown is an upcoming animatronic in The Five Nights: Fredbear. He is identical to Fredbear, except with dark greenish-blue coloring, a golden hat and bowtie, red eyes, and a red endoskeleton. He appears to be in disrepair and is a prototype that was requested to ship with Foxy, who was the newest model, and reaches the place on Night 3. His technology suddenly appeared out of nowhere, and the engineers were unable to figure out the RAM he has. To stop him, the generator panel's audio must be consistently played, and if the player waits for too long, he will laugh and enter the office. Soon after, he will attack the player.

Trivia

 * Unknown's audio plays Greensleeves.
 * Unknown's real name will be revealed with the release.
 * Unknown's technology was actually stolen from the government and his true RAM number is 512 petabytes.