She also had recurring roles as Gina in Love My Way (2004–05), Paula Gill in Home and Away (2009) and Sheriff Waller in miniseries Reckoning (2019–2020) She appeared in the series Hunters in 2016, and had further guest roles in All Saints, Farscape, The Alice, Out of the Blue and miniseries Clickbait.
[1] In 2021, Arundell joined the cast of Neighbours as Evelyn Farlow for a two-week guest stint.
Arundell's films have included 1998 comedy Dags, 2000 alternative drama Sample People (with Ben Mendelsohn and Kylie Minogue), 2008 drama Disgrace (alongside John Malkovich), 2016 fantasy action film Gods of Egypt (alongside Gerard Butler) and 2018 fantasy thriller Harmony.
Her most recent roles have been in 2023 supernatural horror film Late Night with the Devil and 2024 crime thriller Sleeping Dogs (with Russell Crowe).
She played an older Hermione Granger in the Melbourne production of Harry Potter and the Cursed Child, [5] which saw her nominated for a 2019 Helpmann Award.