Question: Walter O'Brien was played by which English actor?
Related documents: [0]  [DOC] Elyes Cherif Gabel (born 8 May 1983) is an English actor. Among his most notable roles, he has portrayed Dr. Gupreet "Guppy" Sandhu in the "BBC" medical drama "Casualty", Dothraki Rakharo in Seasons 1 and 2 of the "HBO" series "Game of Thrones", and P.E. teacher Rob Cleaver in the BBC drama "Waterloo Road". He appeared in the "ITV" drama "Identity" and portrayed Detective Adam Lucas in Season 3 of "Body of Proof". He is currently starring in the CBS series "Scorpion" as computer genius Walter O'Brien. [END] 
[1]  [DOC] Walter O'Brien is the fictional lead character in the American drama television series, "Scorpion". 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. The character, played by actor Elyes Gabel, follows a loose trajectory of Walter O'Brien's real-life exploits that thwart terrorism and disasters in each episode of the series. [END] 
Answer: 
Elyes Gabel
Elyes Gabel