Since her retirement from acting, she has founded Eat Predators, a movement that seeks to end predatory behavior in the entertainment industry.
Nikolas appeared in three episodes of the television series The Walking Dead – her character, Haley, was introduced in November 2012, before being killed off in February 2013.
[14] In August 2021, Nikolas sued Milosh on grounds of sexual battery, gender violence, intentional infliction of emotional distress, and a violation of California’s Tom Bane Civil Rights Act.
[21] Nikolas discusses her strategy as inviting pushback and criticism, saying, "If they want to silence me, it's the whole so-called Streisand Effect, where their usual relentless tactics to silence a survivor just makes it more public.”[22] On July 8, 2023, Nikolas accused actor Jonah Hill of forcibly kissing her at a party at actor Justin Long's house in 2008, when she was 16 and Hill was 24.
[23][24] In February 2024, it was announced that Nikolas would appear in the Investigation Discovery documentary Quiet on Set: The Dark Side of Kids TV.