Penelope Mitchell (born 24 July 1991[1]) is an Australian actress, best known for playing the roles of Letha Godfrey in the American horror television series Hemlock Grove, and Liv Parker in The Vampire Diaries.

Born in Melbourne, Victoria to a French-born artist mother and Australian entrepreneur father, Mitchell spent most of her childhood in Australia with her two older brothers.

Mitchell completed her undergraduate degree in Arts: Media Communication, before moving to Los Angeles to pursue acting.

Heather Mitchell was the first female president of the National Farmers Federation, and the co-founder of Landcare Australia, with former Victorian Premier Joan Kirner.

In the United States, Mitchell is known for her roles on the television series The Vampire Diaries[8] and Hemlock Grove,[9] as well as the films Hellboy and Zipper.