Biography
Kate B. O'Brien is an American actor. Her credited film roles include Phyllis 'Beaver' Eklund in The Fighter (2010) and Diner Waitress in Ted 2 (2015). She also appeared as Witness in one episode of the television series The Expecting (2020).
She is the sister of television talk show host Conan O'Brien and screenwriter Jane O'Brien, and a cousin of actor and comedian Denis Leary.
