Hector's personality is one of a bystander - he lends assistance, but he tends to stay out of the way of the limelight and let Cepheus handle things. He does have speaking moments but they're outside of battle.
Pret-ty good, actually. I noticed that while scrolling through my bio you got the 1000th comment. That means, as per my own tradition, I'm obligated to grant you something.