Erin O'Brien-Moore was an American actress.
Moore's acting career began onstage. Noticed in a Broadway stage production, she was signed to a movie contract. Her early movies placed her in second-lead roles, including Little Men and Ring Around the Moon. She later performed with actors such as Barbara Stanwyck, Humphrey Bogart, and Paul Muni. Her rising career was interrupted by a fire accident, that forced years of surgeries and rehabilitation.
Returning as a character actress, Moore appeared first on television, then again in movies, including Destination Moon Sea of Lost Ships, and Peyton Place.
Her television career included appearances in Lux Video Theater, Alfred Hitchcock Presents, Dennis the Menace, Perry Mason, The Time Tunnel, Adam-12, and for over four seasons on the television version of Peyton Place as Nurse Esther Choate, from March 1965 through April 1969.