LOS ANGELES — Anthony Hopkins has honored the late Chadwick Boseman after winning the best actor Oscar, hailing his fellow performer as a man "taken from us far too early."

The 83-year-old Hopkins took the award for his performance in "The Father," becoming the oldest actor or actress to win an Oscar, edging out Christopher Plummer's supporting-actor win at age 82 in the 2010 film "Beginners."

Hopkins' win was anticlimactic on a show where he wasn't present to accept the trophy. Presenter Joaquin Phoenix's reading of his name was the last dramatic moment of a most unusual ceremony. 

Hours later, Hopkins made a belated acceptance speech in a short video message posted on Instagram, standing in front of the rolling green fields of his native Wales.

"I want to pay tribute to Chadwick Boseman, who was taken from us far too early," he said. "I really did not expect this, so I feel very privileged and honored."

It is Hopkins' first Oscar since he was victorious for playing Hannibal Lecter.

Despite his pedigree, Hopkins was a surprise winner of the Academy Award for best actor for his work on "The Father," playing the role of a man fighting dementia.

Boseman had been expected to win the award, which, in a very rare move from the academy, was the last to be handed out this year instead of best picture.

Boseman was nominated for "Ma Rainey's Black Bottom," his final film before cancer claimed his life last August at age 43. The "Black Panther" star had been diagnosed with the disease four years earlier and kept it private as he continued working.

Hopkins has received four other Oscar nominations, including last year for his role as Benedict in "The Two Popes"; as the eponymous president in "Nixon"; John Quincy Adams in the slavery drama "Amistad," and a loyal butler in "The Remains of the Day."

In a 2016 interview with The Associated Press, Hopkins said an acting career wasn't in the plan.

"I wanted to be a musician, but I drifted into this business by mistake," he said. "I'm still looking over my shoulder thinking somebody will say, 'Sorry, Tony, you're in the wrong business.'"

Hopkins, who started in the theater but found it ill-fitting, focused on movie roles after getting his screen break playing Richard the Lionheart in "The Lion in Winter" in 1968.

In 2000, he became a U.S. citizen. He'd been knighted by Queen Elizabeth II in 1993, giving him the right to use "Sir" before his name.

In Associated Press writer Jake Coyle's review of "The Father,"  he called it riveting "to see Hopkins play all these ever-fluctuating turns of mood. … For an actor so intense, so rigorously unsentimental, this is his Lear."

Besides Boseman, the other nominees were Riz Ahmed, Gary Oldman and Steven Yeun.