Not All Dogs Go to Heaven "American Dad!" character, Avery Bullock in "Lois Kills Stewie" (season 6, episode 5), and his "Star Trek: The Next Generation" character Captain Jean-Luc Picard in "Peter's Got Woods" (season 4, episode 11); Jonathan Frakes, Michael Dorn and Marina Sirtis also appeared in "Peter's Got Woods" as their respective "Star Trek: The Next Generation" characters William Riker, Worf, and Counsellor Deanna Troi. "Not All Dogs Go to Heaven" features the entire original cast of "Star Trek: The Next Generation": Stewart as Captain Picard; Frakes as Riker; Gates McFadden as Doctor Beverly Crusher; Brent Spiner as Lieutenant Commander Data; Dorn as Worf;
Star Trek: The Next Generation (season 2) David Gerrold. He wrote an episode for "The Original Series" called "The Trouble with Tribbles" and came on-board "The Next Generation" before the pilot and wrote the first version of the bible for the series. Rick Berman stated in an early memo that the new series was intended to be an issues-based show in the same mold as the original. Creator Gene Roddenberry concurred, and under questioning from fans at a convention which Gerrold also attended, Roddenberry agreed that it was time for a homosexual character to appear in "Star Trek". Roddenberry told his staff that "Times have changed and