Katharine Cullen is an Australian actress, daughter of actors Max Cullen and Colleen Anne Fitzpatrick. Cullen played a feral child in Mad Max Beyond Thunderdome directed by George Miller, Little Pam in A Girl's Own Story by Jane Campion, Frances in the internationally screened television series Hills End, and Alana, the title role in The Girl From Tomorrow and its sequel The Girl from Tomorrow Part II: Tomorrow's End, a popular sci-fi children’s television series that spawned books, newsletters, fanclubs and international awards,[8] including nominations for three (AFI) Australian Film Institute Awards. Katharine made her professional stage debut aged 24 at The Opera House for The Sydney Theatre Company in A Month in the Country as Vera, directed by Lindy Davies and later played Mrs Fainall, the daughter of Lady Wishfort played by Miriam Margolyes, in The Sydney Theatre Company production of The Way of the World directed by Gale Edwards. She starred in Humble Boy for the Ensemble Theatre and alongside her father, actor Max in the Ensemble Theatre production of I Ought to be in Pictures by Neil Simon, both plays directed by artistic director of the Ensemble Sandra Bates, one reviewer stating "Cullen's portrayal as the outspoken, heartbreakingly brave young girl is magnificent. Her ability to imbue her character with a sensitive mix of fragile vulnerability overlaid by outspoken confidence is remarkable". Cullen later worked with the Sydney Theatre Company performing Brecht and for Belvoir St Theatre as Titania in A Midsummer Night's Dream. In 2010, Cullen appeared in Chekhov’s The Seagull for the Siren Theatre Company. "A special mention must go to Katharine Cullen’s Masha, whose unrequited passion for Konstantin brings about some of the funniest and saddest scenes... Cullen’s vodka-soaked rant inspired well deserved spontaneous applause". In late 2010, for the Ensemble Theatre Cullen played Grace in Between Us, and also for The Ensemble played Kyra in David Hare's Skylight during July 2012.