Famous middle aged actor who recently appeared on Donald Trump's Show who got brain damage?

Who is the famous actor, who was recently on Donald Trump's TV show, who got brain damage? He is a little older, but not ancient. He either was in an accident, or had a stroke. Also, who is the other actor, that got a dui, a year or so ago? He was infamous for his wasted looking mug shot. I, sometimes get the two actors confused...