http://www.newsweek.com/bruce-willis-difference-between-aphasia-dementia-explained-1693729 > Bruce Willis is stepping away from his acting career following an aphasia diagnosis, according to an Instagram post by his daughter, Rumer Willis. > The action star is perhaps best known for his role as John McClane in the Die Hard film franchise. "This is a really challenging time for our family and we are so appreciative of your continued love, compassion and support," Rumer wrote.