Takei has since appeared in numerous television and film productions, reprising his role as Sulu in ' from 1973 to 1974, and in the first six "Star Trek" films, the last of which promoted his character to captain of his own starship. Meanwhile, he became a regular on the science fiction convention circuit throughout the world. He has also acted and provided voice acting for several science fiction computer games, including "Freelancer" and numerous "Star Trek" games. In 1996, in honor of the 30th anniversary of "Star Trek", he played Captain Sulu in an episode of '.