Sarah Snook was admittedly a little tepid on the idea of doing a TV show in the middle of her award-winning theater blitz.

It was 2024, and the actress, famed and acclaimed for her role as the ice-cold Shiv Roy in Jesse Armstrong’s HBO family drama Succession, was winding down on her production of The Picture of Dorian Gray on London’s West End, in which she played 26 separate roles, and for which she would later nab Tony and Laurence Olivier awards. The expectation was that the show would transfer to Broadway. So when she was approached by All Her Fault creator Megan Gallagher and executive producer Nigel Marchant, Snook remembers saying a lot of, “No, there’s no way I can do this show,” she recalls, noting balancing a TV return with Broadway was just too much of an ask. “And to do it away from home, it would mean that it’s too long away from my family,” adds Snook, who had at the time just welcomed a daughter with husband Dave Lawson.

But then Gallagher said there was a possibility of filming in Snook’s native country, Australia. That piqued the actress’ interest enough to at least take a look at the script. “When reading it, I was like, ‘I haven’t really done a thriller genre thing in a TV episodic before.’ And the thing that really captured me was that there are lots of twisty-turny plots — a good plot is one thing, but you want to stay for the characters, or rewatch for the characters, and this seemed to have great interpersonal relationships.”