Psych Threequel On Its Way! I know, you know….that you are excited for another Psych movie! It was just announced that there is a new Psych movie in the works. It will air on Peacock, but no official date has been announced. In the film, in preparation for a shotgun wedding before the birth of Baby Guster, Shawn (James Roday Rodriguez) and Groomzilla Gus (Dulé Hill) go rogue in an attempt to track down Selene’s (Jazmyn Simon) estranged husband, as Lassiter (Timothy Omundson) grapples with the future of his career. Maggie Lawson, Corbin Bernsen and Kristen Nelson will also appear in the movie.