Walter O'Brien (Scorpion)
Hermione Granger (Harry Potter)
Robb Stark (A song of ice and fire)
Thorin Oakenshield (Hobbit)
Princess Leia (Star Wars)
Nick Fury (Avengers)
Captain America is not an ESTJ. Probably ISFJ on him, possibly ESFJ.
Gaston would be an ESTP, and a very clear one.