Image: CBS Beckett Mariner spends much of Lower Decks’ first season struggling to reconcile the disaffected, sarcastically “cool” persona she projects with her earnest desire to be the best Starfleet officer she can be for her friends and family aboard the Cerritos. That conflict becomes a bit more literal in the show’s excellent pastiche of Star Trek’s cinematic history when at its climax, Mariner—who’s cast herself as the Khan-esque villain in a holodeck movie about the Cerritos—is forced to battle, and ultimately lose to, a holographic version of her true self. It’s not just a hilarious sendup of