During his time at Georgia Southern University Theatre, James Harbour has taken on the parts of many pivotal characters. He has played the curate in “The Curate Shakespeare As You Like It,” Robert in “Proof,” Thomas Cromwell in “A Man for All Seasons,” Giles Corey in “The Crucible” and Gloucester in “King Lear.” His role as Willy Loman in “Death of a Salesman” will be his last at Georgia Southern, though, because he has announced his retirement.