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 3) timeline seen in the series. The events of that episode would set up appearances in "The Next Generation" for the actress as the half-Romulan character Sela in later seasons. The season also featured the first appearance of actors who would later reappear both in "The Next Generation" and later series of the franchise. These included Tony Todd as Worf's brother Kurn, who would appear in this role later in the series and also in "Star Trek: Deep Space Nine". "Hollow Pursuits" marked the first appearance of Dwight Schultz as Lt. Reginald Barclay in the franchise. He would become a recurring