Question: What fictional character that fights terrorism is played by the actor who played a Dothraki in seaons 1 & 2 of Game of Thrones?
Sentence (from "Walter O'Brien (character)"): The character is inspired by the real life of Walter O'Brien, a computer expert and hacker who at an early age hacked into NASA servers to obtain secure files and scored a 197 on a childhood IQ test.
Relevant evidence: No