Television Mitchell is well known internationally for her performance as Ashka in the Australian/Polish co-productions of
Spellbinder (1995), and
Spellbinder: Land of the Dragon Lord (1997). The series was a popular children's fantasy program, first broadcast in 1995. Other television productions she has appeared in include: the miniseries
Bodyline (1984),
Land of Hope (1986),
Embassy (1992) and
A Country Practice. In 1998, she starred in the miniseries drama
The Day of the Roses, in which she played a victim of the 1977
Granville rail disaster. She has also appeared in episodes of
Five Mile Creek (1984),
Rake (2010), ''
Miss Fisher's Murder Mysteries (2013), and Ms Fisher's Modern Murder Mysteries (2019). In 2021, she played Birdie in The Unusual Suspects''. In 2024, Mitchell was named as one of the cast for the miniseries
The Narrow Road to the Deep North, and she played Margaux in the
Paramount Plus series
Fake. Mitchell was also named in the ABC series
The Role of a Lifetime. On 22 June 2025, Mitchell was announced as part of the cast for
Paramount+ series
Two Years Later. On 22 September 2025, it was announced that Mitchell was in the cast for Stan series
The Killings: Parrish Station. On 23 April 2026, Mitchell was named in the extended cast for Paramount+ series
Dalliance. Stage Mitchell is a foundation director and board member of the
Sydney Theatre Company (STC). She first appeared at the STC in 1981, performing scenes of Shakespeare's
Henry IV, Part 1 with
Andrew Tighe for a workshop. She has since appeared in dozens of productions for several Australian theatre companies, and has contributed to
Terence Crawford's 2005 book
Trade Secrets: Australian Actors and Their Craft.
Never Did Me Any Harm (
Sydney Festival, January 2012), exploring
parenting, was a joint production between STC and dance company
Force Majeure. It starred Mitchell,
Marta Dusseldorp, and Vincent Crowley, with a solo dance performed by dancer
Sarah-Jayne Howard. Mitchell co-wrote the script of Force Majeure's
You Animal, You with artistic director Danielle Micich, which explored the
sense of smell. She also starred in the performance, which premiered at the Sydney Festival in January 2018. In 2022, it was announced that Mitchell would play the late justice
Ruth Bader Ginsburg in the theatre production
RBG: Of Many, One. In 2024, Mitchell again played Ginsburg for the 2024
Black Swan State Theatre Company season. Critics called Mitchell's performance as Ginsburg as a "tour de force". Mitchell would again reprise Ginsburg for the 2025 Sydney Theatre Company season. ==Filmography==