Thomas is an antagonist and the only one enemy in the game Five Nights at Thomas.
He will often appear in the hallway staring at the player. If he appears there the player must imediately close the door to avoid a jumpscare, neglecting it will cause Thomas to jumpscare the player. You can tell if Thomas is still there or if he left: the light will be a bit darker if Thomas is still there and brightened if he is not.
His jumpscare consists of him getting closer to the player, he appears to flip the desk over when getting closer, he will be eyeless and blood will be pouring out of his eye sockets.
Thomas returns in the sequel Five Nights at Thomas' 2.
He'll start moving on Night 1. He first appears on the central camera, then he appears in the central door. If he appears there, the player must close the door to avoid a jumpscare, neglecting it will cause him to jumpscare the player.
He appears first in the central hallway camera, then he appears in the central office door.
- He's the only animatronic to have a counterpart: Withered Thomas.