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;
Brent Spiner brief cameos as a fellow airline passenger with Frasier Crane's ex-wife, Lilith Sternin. In March 2008, Spiner performed alongside Maude Maggart in a radio show/musical, "Dreamland", which was released as a CD album. In 2008, Spiner played Dr. Strom in the feature film parody "Superhero Movie". In February 2009, he played William Quint in "The Juror #6 Job", an episode of the drama series "Leverage" directed by his "Next Generation" co-star Jonathan Frakes. That same year, he voiced himself in the "Family Guy" episode "Not All Dogs Go to Heaven". In 2010, Spiner and fellow "Star Trek: The Next Generation"