Lara Flynn Boyle is an American actress. She is known for playing Donna Hayward in the television series Twin Peaks (1990–1991). After appearing in Penelope Spheeris's comedy Wayne's World (1992), Boyle had a lead role in John Dahl's neo-noir film Red Rock West (1993), followed by roles in Threesome (1994), Cafe Society (1995), and Happiness (1998). From 1997 to 2003, she starred in the ABC series The Practice, for which she received a Primetime Emmy Award nomination.

Donna Marie Hayward is a fictional character in the Twin Peaks franchise. She was portrayed by Lara Flynn Boyle in the television series Twin Peaks (1990–1991) and by Moira Kelly in the film Twin Peaks: Fire Walk With Me (1992) and its deleted and extended scenes compilation Twin Peaks: The Missing Pieces (2014). She was created by David Lynch and Mark Frost. Making her debut as a main character in the original series, Donna is introduced as the best friend and classmate of Laura Palmer, who tries to solve the mystery of her murder. Donna has a supporting role in the prequel film Twin Peaks: Fire Walk With Me, which depicts the final week of Laura's life. Donna is referenced numerous times in Jennifer Lynch's novel The Secret Diary of Laura Palmer. The novel Twin Peaks: The Final Dossier by Mark Frost reveals some of what happened to her after the events of the show's second season.