I've not seen the movies, but I read Killing Floor after watching the tv show and now I think Richardson's portrayal is...weird. TV Reacher comes off more neurodivergent than realistically intelligent to me (not to say a person can't be both of those things). I was pretty surprised at how different the book Rearcher's personality is, and how some of the fight scenes Reacher wins effortlessly in the show were close calls in the book. It's possible those things change, and become more like Richardson's portrayal later on, I didn't like the book enough to read any others.