Schellenberg's family tells TMZ ... August died peacefully surrounded by loved ones.
77-year-old Schellenberg had a long and storied career in Hollywood--often playing Native American characters.
In fact, he was nominated for an Emmy for Best Supporting Actor in a Miniseries or Movie for his role as Chief Sitting Bull in "Bury My Heart at Wounded Knee."
Métis actor August Schellenberg dies at 77
Appeared in Black Robe, Free Willy and CBC's North of 60
Born in Montreal to Métis and Swiss-German parents, Schellenberg was trained at the National Theatre School of Canada. He lived in Toronto from 1967 until 1995, and later moved to Dallas.
His extensive list of appearances in theatre, film and television, include Black Robe, Free Willy and CBC's North of 60.
In 2012, Schellenberg played the titular role in an all-First Nations version of Shakespeare’s King Lear at Ottawa’s National Arts Centre.
By Mark Blackburn
Schellenberg’s movie career also spanned 4 decades with his first film, Rip Off, premiering in 1971. He went on to perform in more than a dozen movies working alongside Kevin Spacey, Charles Bronson, Adam Beach Colin Farrell and Christian Bale.
The 77-year-old grandfather also starred in the 1991 move The Black Robe with Tantoo Cardinal.
The flags at Ottawa’s National Arts Centre are flying at half mast. Schellenberg was one of the performers in the NAC’s first theatrical production in 1969. According to a release from the NAC, Schellenberg had dreamed of an all aboriginal cast of King Lear long before the NAC opened its doors. In 2012, that dream became a reality when Schellenberg starred in that role surrounded by First Nations, Metis and Inuit actors.