Game of Thrones: Jeor Marmont, Kraznys mo Nakloz, Ros
When: Season 3, Episode 4, "And Now His Watch Is Ended" (Jeor, Kraznys); Season 3, Episode 6 (Ros)
How: Taking control of the Unsullied army in Astapor, Daenerys reveals to their master, the slave trader Kraznys, that she actually knows Valyrian right before commanding Drogon the Dragon to serve him up flambé. In the same episode, Jeor is stabbed in the back by the unruly Rast in a brawl at Craster's Keep. Later, after Littlefinger sells Ros to King Joffrey — having discovered that Ros had been spying on him on for Varys — Joffrey kills her by using her as a live crossbow target.