Troian Bellisario is an American actress. She played Spencer Hastings in the popular teen drama series Pretty Little Liars and appeared in the crime drama series NCIS: Naval Criminal Investigative Service. Bellisario has also been in the films Consent, Martyrs, and Where'd You Go, Bernadette alongside Cate Blanchett, as well as the series On Call. She produced the film Feed and hosted the Science Fiction podcast Ad Lucem for QCODE.