Nimoy played the reoccurring enigmatic character of Dr. William Bell on the television show "Fringe". Nimoy opted for the role after previously working with Abrams, Roberto Orci and Alex Kurtzman on the 2009 "Star Trek" film and offered another opportunity to work with this production team again. Nimoy also was interested in the series, which he saw was an intelligent mixture of science and science fiction, and continued to guest star through the show's fourth season, even after his stated 2012 retirement from acting. Nimoy's first appearance as Bell was in the Season1 finale, "There's More Than One of Everything", which explored the possible existence of a parallel universe. In the May 9, 2009, episode of "Saturday Night Live", Nimoy appeared as a surprise guest in the "Weekend Update" segment with Zachary Quinto and Chris Pine, who play the young Spock and Kirk in the "Star Trek" which had just premiered days earlier. In the sketch, the three actors attempt to appease long-time Trekkers by assuring them the new film would be true to the original "Star Trek".