Kat Stewart

Kat Stewart is an Australian actress who started acting in school and later trained at the National Theatre. She spent a decade as a member of Red Stitch Actors Theatre, from 2002 to 2012, appearing in plays such as Bug, The Shape of Things, and The Little Dog Laughed. Her breakthrough came as Roberta Williams in the first season of Underbelly, a performance that brought her an AFI prize for best lead actress and the Silver Logie for most outstanding actress. She became known to a wider audience as Billie Proudman in Offspring, winning a 2014 AACTA award for supporting actress work in television. Her other television credits include Tangle, Mr & Mrs Murder, and Five Bedrooms, and her films include Jack Irish: Dead Point (2014) and Little Monsters (2019). On stage, she has appeared with Melbourne Theatre Company and won a 2025 Sydney Theatre Award for Who's Afraid of Virginia Woolf?.