Diana Muldaur left a memorable mark on Star Trek as both a guest star in The Next Generation and a lead in The Original Series’ later seasons. Trek fans will recognize her most vividly as Dr. Katherine Pulaski, who joined the Enterprise-D medical team in the second season of The Next Generation, bringing a fresh, sometimes challenging dynamic to the ship's bridge alongside Captain Picard and the ever-logical Data. Before this, Muldaur appeared in The Original Series episodes like “Return to Tomorrow” and “Is There in Truth No Beauty?” where she played Dr. Ann Mulhall and Dr. Miranda Jones, respectively, showcasing a strong presence amid the classic Enterprise crew. Her performances are noted for their sharp intellect and emotional depth, helping to explore complex themes in episodes like “Skin of Evil.” Outside of Star Trek, she is also familiar to TV audiences for roles on shows like L.A. Law, but it’s her contributions to Star Trek that continue to resonate with fans browsing these key HD moments.