Actress
Piesse was cast as Donna in High Flyers when she was 15. She learned the trapeze and Spanish web for the role and took six months off school for the shoot. She then went on to play Alicia in Horace and Tina, had a recurring role in Stingers, and guest starred in Blue Heelers and Last Man Standing. She subsequently appeared in Star Wars: Episode II – Attack of the Clones and Episode III – Revenge of the Sith as Beru Lars (Luke Skywalker's aunt).
In January 2011, Piesse completed shooting her scenes for the romantic comedy, Love Eterne. She plays Sidonia, a psychic, mentor and confidant to the female lead, Medina, played by Melissa Navia. Her song, "There for Me" is featured in it. After completing its film festival run, Love Eterne has won awards at the Los Angeles Movie Awards, Best Shorts Competition and The Accolade Competition. It was an official selection at the New York International Independent Film & Video Festival (20 November 2011) and NewFilmmakers New York Annual Christmas Show (13 December 2011).
In December 2017, The Actors Awards nominated Piesse for Best Supporting Actress for her role in Love Eterne Mourning, a short film made from a couple of her scenes from Love Eterne.
On March 29, 2021, it was announced that Piesse would return to her role as Beru Lars in the Disney+ series Obi-Wan Kenobi. When first approached about returning to the Star Wars universe by the show's director Deborah Chow, Piesse was not actively pursuing acting roles; she and her husband were living in Europe, focused on dealing with their exit from ESP/NXIVM. "[S]ome roles are an easier fit than others. And this one just fits so easily that I didn’t feel I had to try too hard to embody [Beru]," Piesse told ELLE. "The main way to prepare was just—after everything I’d been through, I was still recovering from PTSD. So I did a lot to heal and nourish myself and strengthen myself to make sure that I had all the energy that I needed to be on set. So it was more supporting myself."
