I really, do. Ever since he first appeared with Laura Linney in “You Can Count On Me” as the somewhat dysfunctional younger brother of the main character, I have been a big fan of his. I also like that he named his first son Keen, after spending many weeks in hot debate over it (the hospital actually called him and said they would put baby boy Ruffalo on the birth certificate if Mark and his wife did not make a real decision about the name). Anyway, this guy has it all: looks, brains and a certain humility not often found in Tinseltown. I loved this interview with Terry Gross on NPRs Fresh Air.