[chongli]

The best screenwriter I know of is Vince Gilligan (best known for Breaking Bad and Better Call Saul). Although he -- like everyone else in the TV business -- works in a writer's room, his writing style and his method for "breaking the episode" has led to some incredibly nuanced and compelling characters.

It may (presently) be inappropriate to compare him to Tolstoy (a towering figure in literature) though it must be said that the novel, at one time, was considered a low status medium compared to epic poetry and Greek theatre.