Tron is a 1982 American
science fiction film written and directed by
Steven Lisberger, and released by
Walt Disney Pictures. It stars
Jeff Bridges as protagonist Kevin Flynn;
Bruce Boxleitner in a dual role as security program Tron and Tron's "User", computer programmer Alan Bradley;
Cindy Morgan in a dual role as program Yori and her "User", Dr. Lora Baines;
Barnard Hughes in a dual role as the tower guardian Dumont and his "User", Dr. Walter Gibbs; Tony Stefano in a dual role as Ed Dillinger's secretary Peter and Sark's otherwise-nameless Lieutenant; and
Dan Shor as Ram.
David Warner plays all three main antagonists: the program
Sark, his "User", Ed Dillinger, and the voice of the
artificially intelligent Master Control Program. The film also features cameo roles by
Jackson Bostwick and
Michael Dudikoff.