Canadian actor Graham Greene, the Oscar-nominated star of "Dances With Wolves" and "Green Mile," has died at age 73.

His agent Michael Greene, no relation, said in a statement to USA TODAY that Greene died "after a lengthy illness."

"He was a great man of morals, ethics and character and will be eternally missed," Michael Greene wrote.

The Canadian First Nations actor, a tireless advocate for Indigenous representation in Hollywood, first appeared in the 1979 drama series "The Great Detective" and in the 1983 film "Running Brave."

But Greene's leap to Hollywood came with "Dances with Wolves," playing the wise and compassionate Sioux medicine man Kicking Bird.

The performance earned Greene an Academy Award nomination for best supporting actor in 1991. Kevin Costner 's frontier epic

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