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.
“Words cannot explain how much you will be missed,” tweeted the NAC’s communications officer Sean Fitzpatrick. The NAC will lower its flag today in his honour.