Lenka Peterson (born October 16, 1925, in Omaha, Nebraska, as Betty Ann Isacson) is an actress of stage, film and television.
One of the first members admitted to New York's Actors Studio, Peterson's Broadway portrayals included Ella in Sundown Beach (1948), Maude inThe Grass Harp (1952), Kitty in The Time of Your Life (1955), Sally and Mary in All the Way Home (1960), Rose in Nuts (1980), and Sarah in Quilters(1984), among others.
Peterson was nominated for a 1985 Tony Award for Best Featured Actress in a Musical for her role in Quilters. She guest starred in such early television productions as Hallmark Hall of Fame (1952), The Philco Television Playhouse (1955), and Actors Studio (1949 and 1950).
She has also been a cast member of the television series Young Dr. Malone, Search for Tomorrow, A Flame in the Wind, Another World, and Code of Vengeance.
Peterson is the mother of actress Glynnis O'Connor and Darren O'Connor by her husband Daniel O'Connor, who is retired from NBC News.