Question: Who won the best actor award for the oscars?

context: Gary Leonard Oldman (born 21 March 1958) is an English actor and filmmaker. He is the recipient of numerous accolades, including an Academy Award, three BAFTA Awards, two Critics' Choice Awards, a Golden Globe Award and a Screen Actors Guild Award. Known for his versatility and intense acting style, Oldman is regarded as one of the greatest actors of his generation.
question: Who won the best actor award for the 2017 oscars?
short_answers: Gary Oldman
Gary Leonard Oldman
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question: Who won the best actor award for the 2016 oscars?
short_answers: Caleb Casey McGuire Affleck-Boldt
Casey Affleck
context: No context provided
question: Who won the best actor award for the 2015 oscars?
short_answers: Leonardo Wilhelm DiCaprio
Leonardo DiCaprio
context: No context provided
question: Who won the best actor award for the 2017 Oscars?
short_answers: Gary Oldman
context: No context provided
question: Who won the best actor award for the 2016 Oscars?
short_answers: Casey Affleck
context: No context provided
question: Who won the best actor award for the 2015 Oscars?
short_answers: Leonardo DiCaprio

Answer: There have been a number of Best Actor Award winners at the Oscars. As of the 93rd Academy Awards, Anthony Hopkins is the most recent Academy Award for Best Actor winner. Joaquin Phoenix won Best Actor at the 92nd Academy Awards, and Rami Malek won Best Actor at the 91st Academy Awards. Previous winners of the Best Actor Award include Gary Oldman at the 2017 Oscars, Casey Affleck at the 2016 Oscars, and Leonardo DiCaprio at the 2015 Oscars.