Reginald Hargreeves (Colm Feore) took Diego (David Castañeda) down a few notches after the latter shows his skill for knife throwing during episode six, "A Light Supper." Diego doesn't just throw knives, though, he manipulates them to get them to go exactly where he wants them. In the season finale, we see that not only can he manipulate knives, but he can actually stop projectiles mid-air (as seen with the barrage of bullets from the Commission). On top of all this, he excels when it comes to hand-to-hand combat.