Got his autograph once; no more than 5'9 1/2" tall, tops
It was after his role in a Broadway production of Julius Caesar in 2003 (said I was a fan since St. Elsewhere, which he didn't particularly react to - maybe residual issues). I'm 5'8 and no way he was 6'1" - he was barely taller than me.
Most movie stars are shorter in person, I guess (the only one I've seen in person who looked as tall in real life as in the movies was Dennis Quaid, who I saw on the phone in the Salt Lake City airport once. Guy was well over six feet).