Melanie Jayne Lynskey (born 16 May 1977) is a New Zealand actress and voice actress. She is known for playing soft-spoken, yet quirky and often flawed women. She first gained recognition as teenage murderess Pauline Parker in Peter Jackson's 1994 drama Heavenly Creatures. This was followed by supporting roles in a succession of American comedies, such as Ever After (1998), Coyote Ugly (2000), and Sweet Home Alabama (2002).
After relocating permanently to Los Angeles, Lynskey established herself as a character actress with appearances in films such as Shattered Glass (2003), Flags of Our Fathers (2006), Away We Go; Up in the Air; The Informant! (all 2009), Win Win (2011), and The Perks of Being a Wallflower (2012). She received critical acclaim for her leading role in the comedy-drama Hello I Must Be Going (2012), which proved to be a turning point in her career. She has since starred in Happy Christmas (2014), The Intervention (2016), and I Don't Feel at Home in This World Anymore (2017). These and other roles have made her a prominent part of the American independent film scene.On television, Lynskey achieved fame with her portrayal of Rose on the CBS sitcom Two and a Half Men (2003–15). From 2015–16, she starred as Michelle Pierson on the HBO series Togetherness, earning a Critics' Choice Award nomination for her performance. She also provided the voices of Beatrice in the Cartoon Network miniseries Over the Garden Wall (2014), and Megan on Disney XD's Future-Worm! (2016–18). Most recently, she starred as Molly Strand on the Hulu series Castle Rock (2018).
She is also known as Melanie Jayne Lynskey.