At a thriller writers conference last year, David Corbett called out the movie MICHAEL CLAYTON as an excellent example of development of secondary characters. I finally got a chance to watch the movie, and he was right. (How could you go wrong with the likes of Tom Wilkinson, Sydney Pollack, and a very unlikeable Tilda Swinton?)

He also gave shout outs to KILLING EVE, IN BRUGE, VERTIGO, BODY HEAT, and IRONSIDE.

Who are your favorite literary secondary characters?