T-Rip never had screen time, as far as T:S goes, Kyle's the only real significant screen presence character not made, hell, I bet he had more screen time than Connor.
T:S is lacking Reese, and I think having him would have been enough, Blair might have been cool but I don't see her as integral to the story as Kyle and the characters that were made. Pirates is missing Barbossa, TDK is missing Gordon, ALIENS never got Bishop or Newt, Alien never had Ripley. HT always manages to come up short of producing a "full" line for films.
IF, big IF, Hot Toys makes young John Connor from T2, it'll be the first time HT's done a full line of figures from a movie where I'll feel they covered every key character.