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.^{[citation needed]}

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.^{[citation needed]} 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).^{[citation needed]} In 2021, she played Birdie in The Unusual Suspects.^{[citation needed]}

In 2024, Mitchell was named as one of the cast for the miniseries The Narrow Road to the Deep North,^[1] and she played Margaux in the Paramount Plus series Fake.^[2] Mitchell was also named in the ABC series The Role of a Lifetime.^[3] On 22 June 2025, Mitchell was announced as part of the cast for Paramount+ series Two Years Later.^[4] On 22 September 2025, it was announced that Mitchell was in the cast for Stan series The Killings: Parrish Station.^[5]

On 23 April 2026, Mitchell was named in the extended cast for Paramount+ series Dalliance.^[6]

Stage

Mitchell is a foundation director and board member of the Sydney Theatre Company (STC).^[7] She first appeared at the STC in 1981, performing scenes of Shakespeare's Henry IV, Part 1 with Andrew Tighe for a workshop.^[8]

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.^[9][10]

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.^[11][12]

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.^[13]

In 2022, it was announced that Mitchell would play the late justice Ruth Bader Ginsburg in the theatre production RBG: Of Many, One.^[14] In 2024, Mitchell again played Ginsburg for the 2024 Black Swan State Theatre Company season.^[15] Critics called Mitchell's performance as Ginsburg as a "tour de force".^[16] Mitchell would again reprise Ginsburg for the 2025 Sydney Theatre Company season.^[17]

Film

Television

Other appearances