
Helen Rachel Slater (born December 15, 1963) is an American actress and singer-songwriter. She is best known for her role as the title character in the 1984 film Supergirl. She returned to the 2015 TV series of the same title, this time as Supergirl's adoptive mother, Eliza Danvers.
In the intervening years, she starred in several films including The Legend of Billie Jean (1985), Ruthless People (1986), The Secret of My Success (1987), and City Slickers (1991). She additionally found work as an actress in television, and stage projects, including three guest appearances on the series Smallville (2007–2010).
In the 2000s, she recorded three albums, on which she sings her own compositions and plays the piano.

Supergirl
1984 · as Supergirl / Linda Lee

City Slickers
1991 · as Bonnie Rayburn

Happy Together
1989 · as Alex Page

Toothless
1997 · as Katherine's Mom

Lassie
1994 · as Laura Turner

The Secret of My Success
1987 · as Christy Wills

Ruthless People
1986 · as Sandy Kessler

The Legend of Billie Jean
1985 · as Billie Jean

No Way Back
1995 · as Mary

DC Super Hero Girls: Hero of the Year
2016 · as Martha Kent (voice)

Chantilly Bridge
2023 · as Hannah

12:01
1993 · as Lisa Fredericks

Seeing Other People
2004 · as Penelope

Model Minority
2012 · as Mrs. Ambrose

The Good Mother
2013 · as Cheryl

American Adventure
2000 · as Kathy

Parallel Lives
1994 · as Elsa Freedman

Sticky Fingers
1988 · as Hattie