Titsalina Alex Cross is described in the books as being similar to Muhammed Ali. IIRC it stated this is the first few books when character was still new. Now, I know Morgan Freeman is a fantastic actor, but Alex is one with the ladies, he gets a fair bit of action doesn't he, and I'm not sure that in RL if Ashley Judd would put out for him iyswim. I always imagine Alex to be very dark skinned and a cross between Will Smith and Denzel Washington. Not quite as big as Denzel, but bigger than Will Smith
I usually do. I read a book that described one of the characters as having longish curly hair and a loose woollen knitted jumper. I was in Waterloo station and saw this young guy and thought "I know you". I then realised it was the description of the guy from the book.