Stacy Keach is the latest actor added to the growing cast of Tony Gilroy's The Bourne Legacy, which stars Jeremy Renner as a new ultra-capable agent who emerges from the same training program that created Matt Damon's Jason Bourne. We don't know Keach's role, but do know that he will play alongside (or against) Rachel Weisz and Edward Norton in the film that acts as a parallel storyline to the three existing Bourne ...