Clu (Tron)

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. He is one of the few characters in the TRON Universe to have yellow circuitry. The reason for this is the design of programs in TRON. Free and usually benevolent programs were blue while those under the control of the MCP were orange/red. Clu 1 (like Clu 2) was created outside of the system by the coding and technology of Kevin Flynn and therefore not a free program in the Game Grid or under the MCP, and is differentiated in the movie by the color yellow. They used this as the basis of Clu 2 as a specialized program design by Flynn, for these reasons as well they both have his appearance as according to TRON philosophy; all programs contain the spirit of the user, and this is demonstrated by their appearance.