In Season 6, Shawn (James Roday) and Gus (Dulé Hill) continue taking on cases that put them in strange situations. They investigate a murder that appears to be perpetrated by a vampire, go undercover as a coach and mascot of a baseball team, and check into a mental hospital. Meanwhile, Lassiter (Timothy Omundson) learns the truth about Shawn and Juliet (Maggie Lawson) and finds a love interest of his own (Kristy Swanson); and Shawn helps Juliet reconnect with her estranged dad (William Shatner), but the reunion isn't quite what he expected. Corbin Bernsen and Kirsten Nelson also star.