According to the episode "The Real Thomas", Thomas was actually a Russian spy and his mom was actually a robot with Italian accent programed by M.O.M.M., the organization he works with. He posed as an intern named Thomas and gained the Park Workers's trust and friendship, and stopped any FBI Agents who figured out his secret. It turns out he deceived his friends and working with another Russian spy named Natalia planned to remodel the park into a Russia-looking park and destroy the United Nations/Washington DC.
Nikolai was going to shoot the missle, but later had a change in heart after seeing the friendship he had with the park workers and disables the missle. He then leaves on the run from U.S. and Russia and bids his friends goodbye and runs away from the park to go into hiding.
- Nikolai was actually raised by the Russians as a baby who was abandoned.
- Out of all the Park workers, Nikolai/Thomas is the most evil as he deceived and lied to the entire park workforce, and was part of a "Soviet Spy" organization before his reformation.
- During his earlier appearances, he wasn't originally written to be a spy posing as an intern, but was originally supposed to be a regular intern; some point later in the series did the writers come up with the plan and decided to implement the plot twist.