Amity “Amma” Crellin is a main character and the main antagonist in HBO's Sharp Objects, as the murderer of Ann Nash and Natalie Keene. She is portrayed by Australian actress Eliza Scanlen.

Is Amma Camille's daughter in Sharp Objects?

One Sharp Objects theory gaining steam is that Amma is actually Camille's daughter, not Adora's. The show has hinted heavily — and almost explicitly stated in the most recent episode, "Ripe" — that Camille was assaulted by some local boys in the woods when she was a teenager.

What is wrong with Amma in Sharp Objects?

Amma murdered the girls partially because she's been warped by being poisoned by her mother her whole life. ... “A child weaned on poison considers harm a comfort,” Flynn writes. In the novel, Camille (Amy Adams) also posits: Ann and Natalie died because Adora paid attention to them.