Nakahara was born on O‘ahu, Hawaii. Before becoming an Actress, Nakahara moved from Hawai‘i to San Francisco to pursue a career in art. She married David Wallett, and moved to Los Angeles to try acting. Other than M*A*S*H, she has had small roles and guest spots on several other television shows, had a small part in the films Clue (1985) as Mrs. Ho, the domestic cook, and in 1996's Black Day Blue Night. She also played a labor and delivery nurse in the 1988 John Hughes film, “She’s Having a Baby”. Along with several other M*A*S*H cast members, she was a spokesperson for IBM.