Who won the Best Actor Oscar in 2017?

Caleb Casey McGuire Affleck-Boldt (born August 12, 1975) is an American actor and director.

In his final role of 2016, Affleck starred as Lee Chandler, a grief-stricken alcoholic loner, in Kenneth Lonergan's drama Manchester by the Sea. One of the film's producers, Matt Damon, initially intended to star in the film. When scheduling conflicts made this unfeasible, Damon agreed to step aside on the condition that he be replaced with Affleck. Lonergan readily agreed, remarking that Affleck was "the natural person to go to." Affleck had close relationships with both men and had previously offered notes on early drafts of the script. The movie was a box office success, and Affleck's performance received widespread critical praise. For his performance as Lee Chandler he won more than 40 awards including the Golden Globe, BAFTA and Academy Award for Best Actor and a Screen Actors Guild Award nomination.