Peter Outerbridge (born June 30th, 1966) is a Canadian film and television actor best known for his role as Ari Tasarov in the CW action series Nikita, Dr. David Sandström in the TMN series ReGenesis, Henrik "Hank" Johanssen in Orphan Black, Bob Corbett in Bomb Girls, William Easton in Saw VI, George Brown in the television film John A.: Birth of a Country, and Black Mask in Batwoman. He also played the lead role of Detective William Murdoch in a three-episode mini-series, The Murdoch Mysteries, in its initial run on Canadian television, with two episodes shown in 2004 and a third in 2005.

Outerbridge was born and raised in Toronto, Ontario, the son of a lawyer and youngest of five siblings.

After high school Outerbridge enrolled at the University of Victoria to study acting. Afterwards he toured Canada for four years with the theatre group Way Off Broadway. In 1997 and 2002 he was nominated in the Canadian Genie Awards as the best actor in the films Kissed and Marine Life, respectively. He was also nominated in the Gemini Awards for his achievements. Outerbridge won a 2013 Canadian Screen Award for Best Performance by an Actor in a Featured Supporting Role in a Dramatic Program or Series for his role in John A.: Birth of a Country. Outerbridge had a recurring role in the second season of Orphan Black, portraying the character Henrik "Hank" Johanssen, a Prolethean religious leader who is against the scientific processes that created the clones. In 2021, Outerbridge recurred in the second season of Batwoman as Black Mask.