Theodore "T-Bag" Bagwell

He is plated by Robert Knepper. The character was introduced into the series as a fellow prisoner of the protagonist, Michael Scofield (played by Wentworth Miller), at Fox River State Penitentiary. As the leader of a white supremacist group and someone who shows little remorse for his crimes, T-Bag is the most villainous of the Fox River Eight. Throughout the first season, T-Bag plays a major part in the season's main plot. In the second season, the character's storyline veers from the main plot as a separate subplot. As the series progresses, more of the background story of the character is revealed. T-Bag is described by TV Guide's Maya Schechter as "one of the creepiest characters on television" and is mentioned by Entertainment Weekly as one of "TV's best villains".

A native of Conecuh County, Alabama, Theodore Bagwell was born of both incest and rape after his father sexually assaulted his Down syndrome-afflicted sister. He was also molested by his father. His father is also the person responsible for his eloquent use of language; He once forced T bag to recite ten synonyms for 'destroy'. This was perhaps common place in his childhood. Ever since he was young, Bagwell was constantly in and out of jail, often for vandalism and torturing animals. While in fourth grade, he attempted to set his teacher's house on fire and was sentenced to juvenile hall. During this time, he became a member of the Alliance for Purity, a fictional white supremacist group.