He went on to appear as Gowron over the course of the next decade in several further episodes of "The Next Generation", as well as '. He also filmed segments for the video game ', which was also directed by Frakes. The game was the first "Star Trek" game to use real actors, and was awarded the Sci-Fi Universe Reader's Choice Universe Award for Best Achievement in Genre Multi-Media. At the time of filming the game, he had heard a rumour that Michael Dorn was joining the cast of "Deep Space Nine". Given the relationship between Gowron and Dorn's character, Worf, O'Reilly thought that this might lead to his return to a "Star Trek" television series too. Both Dorn and O'Reilly reprised their characters together in the series four opening episode "". O'Reilly also appeared as a different Klingon in the , a video cassette-based board game. His likeness was used for three action figures, a life-size poster and several lithographs.