Ellen Tyne Daly is an American stage and screen actress.

She has won six Emmy Awards for her television work, a Tony Award and is a 2011 American Theatre Hall of Fame inductee. She is best known for her television role as Detective Mary Beth Lacey in Cagney & Lacey, for which she is a four-time Emmy Award winner as Outstanding Lead Actress in a Drama Series. In 1989, she starred in the Broadway revival of Gypsy and won the 1990 Tony Award for Best Actress in a Musical.

She portrayed Mrs. Plank, Lily's stern, old-school teacher, in "Won't You Be Our Neighbor".

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