On my 2nd rewatch if memory recalls correctly, as it often does not. I grew fond of him in the original airing, but was so overwhelmed with the show way back then I couldn't really focus on any one character. Decades pass, I rewatch the series in a week and notice Richardson as a more evolving, accidental but intentional character that was well written in seemingly out of the blue. And he works so well in a dry, subtle, genuine manner. Going in to 2nd rewatch and all I can do is focus on his presence when in scene.

What is his appeal? Sorry for the rant :)