Brianna Hildebrand was featured in Deadpool 2.
Brianna Hildebrand . She is known for appearing in the web series Annie Undocumented , and as Negasonic Teenage Warhead in the 2016 film Deadpool . Deadpool (film) . It is the eighth installment and a spin-off in the X-Men film series , and stars Ryan Reynolds as the titular character , as well as Morena Baccarin , Ed Skrein , T. J. Miller , Gina Carano , Leslie Uggams , Brianna Hildebrand , and Stefan Kapičić .