Star Trek: The Next Generation

Trivia

• Patrick Stewart (Captain Jean-Luc Picard) and Jonathan Frakes (Commander William T. Riker) are the only actors to appear in every episode of the series.
• Colm Meaney (Chief Miles O'Brien) and John de Lancie (Q) are the only actors, besides the regulars, to appear in both the first ("Encounter at Farpoint") and the last ("All Good Things...") episodes of the series. However, Denise Crosby (Lt. Tasha Yar), who left the cast in the Season One episode "Skin of Evil" and was therefore not a regular at the time of the final episode, also appeared in both episodes.
• Majel Barrett is the only actor to be credited in all five series, appearing in The Original Series, The Next Generation, and Deep Space Nine. She did voice-over work as various Federation computers in the above series, as well as Voyager and Enterprise, along with several Star Trek motion pictures.
• Famous guest stars have included Ashley Judd, Kirsten Dunst, Kelsey Grammer, Teri Hatcher, Joe Piscopo, John Tesh, Nikki Cox, Mick Fleetwood of Fleetwood Mac, Christopher McDonald, Tony Todd, Bebe Neuwirth, Dustin Diamond of Saved By The Bell, Famke Janssen, Mae Jemison (the first non-white woman in space), Renée Jones of Days of Our Lives, James Cromwell, Stephen Hawking (who happens to be the only person ever to play himself), Ben Vereen, Sabrina Le Beauf of the Cosby Show, Paul Sorvino, John de Lancie, Dwight Schultz, Diana Muldaur, Carel Struycken, Whoopi Goldberg, DS9 stars Armin Shimerman, Colm Meaney, and Alexander Siddig, Voyager star Robert Duncan McNeill, and TOS stars DeForest Kelley, Leonard Nimoy, James Doohan, and Majel Barrett (who is also creator Gene Roddenberry's wife.)
• LeVar Burton, Jonathan Frakes, Gates McFadden, and Patrick Stewart all tried their hand in directing for the show. Burton also directed for Deep Space Nine, Voyager, and Enterprise. Frakes also directed for Deep Space Nine, Voyager, and two Trek films, First Contact and Insurrection. Michael Dorn directed for Deep Space Nine and Enterprise.
• Armin Shimerman, who plays Quark on Deep Space Nine guest-starred four times, but only once as Quark. He played a Ferengi named Letek in The Last Outpost where the Federation had first contact with the Ferengi Alliance, DaiMon Bractor - another Ferengi - in Peak Performance, and in the episode Haven - where he played the face of Deanna Troi's Wedding Gift Box.
• The Engineering set was not originally intended to be constructed for the show's pilot, but because Gene Roddenberry had never had the Engineering set for the original Enterprise in TOS built the way he wanted it to, he deliberately arranged for scenes in the pilot to be in Engineering, thus forcing the set's construction!
• The map of the Enterprise-D at the back of the Engineering set laughingly refers to the fact that, on the design of the original Enterprise from TOS, toilets were accidentally omitted from the design. The Enterprise-D chart takes stock of this: a single toilet was marked in the center of the saucer section!
• Geordi LaForge wears a special device to help him see, called a VISOR. The acronym stands for "Visual Instrument and Sensory Organ Replacement."
• As a running gag, bathrooms are never shown on Enterprise schematics. This joke is referenced in ' when Zefram Cochrane asks Geordi LaForge "...don't you people from the 24th Century ever pee?"