Abbie Cornish (born 7 August 1982), also known by her rap name MC Dusk, is an Australian actress and rapper. Following her lead performance in 2004's Somersault, Cornish is best known for her film roles as Fanny Brawne in Bright Star (2009), Sweet Pea in Sucker Punch (2011), Lindy in Limitless (2011) and for her work with writer/director Martin McDonagh in Seven Psychopaths (2012) and Three Billboards Outside Ebbing, Missouri (2017). For the latter, Cornish won her first Screen Actors Guild Award as part of the cast. Since 2018, she portrays Cathy Mueller in the Amazon Video series Jack Ryan opposite John Krasinski.