Theo is a protagonist that helps the protagonist and calls you during in-game. He works for Fazbear's Fright and is trying to gather artifacts from abandoned establishments/pizzerias starting with the Jolly establishment. He works to achieve the goal with the protagonist who is not named.
It is very unclear about Theo's true intentions, but he has some features. In Night 5 he appears to be selfish and doesn't care about The Protagonist well-being, just that he is alive and around. He also seems to think that everything is simple in Night 2. In Jolly 3: Chapter 2 in Night 5 he appears to be serious as the oxygen level is low. Given this, it can be assumed that Theo has no clear personality, and rather has mood swings, a serious nature, and maybe even a slight bit of Split Personality Disorder, although there are emotions that are common and present.
- He is kinda similar to Hand-unit from FNAF Sister Location.
- He seems to show intrigue towards Maxie, hinting that either he is surprised about Maxie, or he has seen her before.
- He never mentions the animatronics by name.