Mr. X

It was one of the six T-103 Tyrants that were airlifted into Raccoon City. While the other five T-103 were sent to test their combat abilities, T-00 was given instructions to recover a G-Virus sample from the pendant of Sherry Birkin and kill any police officers and survivors hiding in the police station. Upon escaping it multiple times, T-00 began hunting Leon S. Kennedy and Claire Redfield who were trying to escort Sherry to safety.

While at first shown as a being without emotions, soul, and ruthlessly and efficiently following orders given, T-00 is at times shown to have hints of a mind of its own.

When faced with a challenge or obstacle, while it does not speak, T-00 still coveys its own reaction, such as snapping its neck, and cracking its jaw and knuckles in a show of irritation and almost seeming to smile when it corners Claire and Sherry in an elevator in the Remake. If the player were to attack it, and if its fedora is shot off in the Remake, T-00's normally slow walk turns into a quick sprint, showing that it is capable of holding certain objects in value, becoming enraged when its hat is damaged.

While a true height has never been given, due to the fact that it must lower its head in order to fit through doorways, with the standard door frame being roughly 2.1 meters or 6'9 inches, this indicates that T-00 stands About seven feet tall and he Weighs Over 300lbs.