Diana Muldaur (born August 19, 1938) is an American film and television actress.
Born in New York City, but raised on Martha's Vineyard, Massachusetts, Muldaur started acting in high school and continued on through college, graduating from Sweet Briar College in Virginia in 1960. She studied acting under Stella Adler and made her name on the New York stage. She was at one point a board member of the Screen Actors Guild and was the first woman to serve as president of the Academy of Television Arts & Sciences (1983–1985).
Muldaur's television roles include L.A. Law's Rosalind Shays, and Dr. Katherine Pulaski in the second season of Star Trek: The Next Generation.She also appeared in the Original Star Trek as Science Officer Dr Ann MulhoySeries 2 episode 20. She provided the voice of Dr. Leslie Thompkins in Batman: The Animated Series. She starred in movies such as The Other, One More Train to Rob, McQ and The Lawyer.
Muldaur worked with future co-star Richard Dysart at New York's Circle in the Square in the mid-1960s. She guest starred on the Gunsmoke episode, "Fandango" (1967), with James Arness. An excerpt of that episode's dialogue was sampled on the Pink Floyd album The Wall,