Martha trains with the Australia-based online acting platform Stagemilk, developing a wide range of characters through monthly monologue and scene-work. Her roles include among others Catherine of Aragon in The Tudors, Titiana in Midsummers Night Dream, Natalja in Bad Roads, Vivian in Pretty Woman, Inez in No Exit, Alex in The Secret Life of Us, Samantha in Her, Janice in Justice, Cruella in 101 Dalmatians; Alicia in The Good Wife, Harper in Angels in America, Clare in Blue Bird, Villanelle in Killing Eve, Jenna in 30 Rock, Nina in The Seagull, Morpheus in The Matrix and Rose in Fences.