The Fallout show's naive Vault-dweller Lucy strikes me as a tricky character to pull off—too wide-eyed and it's just annoying—but actor Ella Purnell artfully balances her performance on the edge between dopiness and competence. I think she responded very successfully to the description that sold her on the part, which was roughly 'Ned Flanders, but with a violent edge.'
In an Amazon Q&A, Purnell said she was aware of the Fallout games because her friends and brothers played them, and when the show's executive producers described Lucy to her, she was instantly on board. "I'm in. I am 100 percent in. Sign me up," she recalls telling them.
