A prototype of Tron was completed in January 1980 by ENCOM programmer Alan Bradley as a self-monitoring security program. The full name of this program was TRON-JA-307020. Work continued on Tron until 1982, but when the program was almost complete, Alan discovered that his access to Tron and the ENCOM computers had been suspended as a security measure against a hacker, who turned out to be Clu is marginal character in Tron and a major villain in TRON: Legacy. In TRON: Legacy, he is the leader of his army similar to Scar from Lion King . He has minions consisting robots security soldier guards foot soldiers and a secret spy tracker and disc launcher Rinzler a k a Tron and his secret friend following orders Jarvis. Through CLU's rage, Kosinski and the writers of Tron: Legacy pile on a lot of hostility toward their own experimentation. At the time, de-aging still represented a possible future in film. Codified Likeness Utility 2.0, or simply known as CLU 2 or Clu, is the main antagonist of TRON: Legacy, the sequel to the 1982 film TRON, and the overarching antagonist of both TRON: Uprising and TRON: Evolution. Clu was originally created by Kevin Flynn to help him design the Grid and was Kevin Flynn / Clu: Bruce Boxleitner Alan Bradley / Tron: David Warner Ed Dillinger / Sark / Master Control Program: Cindy Morgan Lora / Yori: Barnard Hughes Dr. Walter Gibbs / Dumont: Dan Shor Clu resembled his user Kevin but spoke in a different voice. The original Clu was derezzed by the Master Control Program (MCP) in the original film. This film's new Clu is actually the program now running Flynn's own created world, called The Grid, and is the film's main antagonist. Overview The original Clu was created by Kevin Flynn to seek out evidence that ENCOM engineer Ed Dillinger stole several of Flynn's video game designs. In the original Tron film, Clu is unfortunately caught and assimilated into the Master Control Program (read: tortured to death). Rinzler is Clu's primary enforcer. He is an exceptionally skilled warrior and is the elite combatant in all games in the Grid. In addition, he is the only known program to use two identity discs in battle. Originally known as Tron, Rinzler's identity came into being when Tron was supposedly "killed" by Clu. Contents 1 History 1.1 TRON: Uprising Clu, which stands for Codified Likeness Utility, was a Hacker program written by Kevin Flynn and played by Jeff Bridges. Clu looked just like his user, Flynn, but talked in a very different voice than his human counterpart. Clu (Codified Likeness Utility) is a security program first created by Kevin Flynn to infiltrate the MCP's domain, then - as Clu 2 - later used as security program in the Flynn's Arcade Grid. Dyf9D3.