The 19-year-old will play the American mother who was controversially found not guilty of the murder of her 2-year-old daughter in 2008.
“It’s nerve-wracking to combat such a controversial issue as well, the outpouring of negativity for Casey Anthony is unlike anything we’ve seen in the media in years,” Deveaux said.
“I’ve been receiving tons of emails, messages and such from people I haven’t seen in year,” Deveaux told ET. “My parents have been calling me from home a lot, letting me know every time my name pops up on the TV or the Internet. It all happened overnight… unbelievable!”
Deveaux will feature alongside Rob Lowe, who will play Florida prosecutor Jeff Ashton, whose memoir is the source of the biopic.