One of the most prolific actors of the last half century has died. Generations of movie and TV fans have known Donald Sutherland from an eclectic mix of films and television series, playing roles ranging from tortured leading men to sardonic sidekicks. Sadly, Sutherland died on Thursday at the age of 88. His passing was confirmed by Deadline; no cause of death was given. The Canadian-born Sutherland studied drama in England, and made his earliest screen appearances in BBC and Hammer productions. His Hollywood breakthrough was his role in The Dirty Dozen, the Lee Marvin-led war film about a gro…