Actor Donald Sutherland died on Thursday in Miami.

He was 88.

According to 'The Hollywood Reporter,' the critically acclaimed actor died after a battle with an unnamed "long illness," leaving behind a legacy of iconic roles and unforgettable performances.

Sutherland's remarkable career included roles in classic films such as 'The Hunger Games,' 'M*A*S*H,' and 'Klute.' His portrayal of President Snow in 'The Hunger Games' franchise introduced him to a new generation of fans, cementing his status as a versatile actor capable of delivering compelling performances in a wide range of genres.

He's Got The Key
circa 1975: Canadian film star Donald Sutherland. Hulton Archive/Getty Images

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Helen Mirren shared a statement with 'The Hollywood Reporter' about the loss of her friend.

"Donald Sutherland was one of the smartest actors I ever worked with. He had a wonderful enquiring brain, and a great knowledge on a wide variety of subjects. He combined this great intelligence with a deep sensitivity, and with a seriousness about his profession as an actor. This all made him into the legend of film that he became," Mirren, 78, said. "He was my colleague and became my friend. I will miss his presence in this world."

 Actors Donald Sutherland (L) and Kiefer Sutherland attend the screening of Momentum Pictures' 'Forsaken' at Autry Museum of the American West on February 16, 2016 in Los Angeles, California. (Photo by Imeh Akpanudosen/Getty Images)
Actors Donald Sutherland (L) and Kiefer Sutherland attend the screening of Momentum Pictures' 'Forsaken' at Autry Museum of the American West on February 16, 2016 in Los Angeles, California. (Photo by Imeh Akpanudosen/Getty Images) Getty Images

Donald's son, Kiefer Sutherland, took to Twitter, now known as X, to express his sorrow.

"With a heavy heart, I tell you that my father, Donald Sutherland, has passed away," he wrote. "I personally think one of the most important actors in the history of film. Never daunted by a role, good, bad or ugly. He loved what he did and did what he loved, and one can never ask for more than that. A life well lived."

Throughout his career, Donald honed his ability to immerse himself fully into his characters, making him a favorite amongst directors and a beloved figure to moviegoers around the world. His contributions to the film industry were recognized with numerous awards and nominations.

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Donald Sutherland is survived by his five children; Kiefer, Rossif, Roeg, Rachel, Angus, his grandchildren, and his wife, Francine.

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Kiefer Sutherland, Celebrity obituary, Celebrity deaths