She explained that she does not have a Twitter account: "I think it's best for me not to have it because my first thought is never my best; my first reaction is never my best reaction".
Her agent discouraged her from enrolling in drama school because she was already getting acting work, but she was keen on applying to the Royal Academy of Dramatic Art (RADA). She made it to the final round of auditions, but was not accepted.
Cooke supported the Save The Children campaign by appearing in Bulgari advertisements in 2014.
She played two roles where she was nearly sick & dying around the same time period. She was struggling with Cystic Fibrosis as Emma Decody in Bates Motel (2013) and battling Leukaemia as Rachel in Me and Earl and the Dying Girl (2015).
Lives in New York City.
She auditioned for roles in the British soap operas Emmerdale and Hollyoaks but was turned down by both.