Elyes Cherif Gabel (/ˈɛliəs ɡəˈbɛl/; born May 8, 1983) is a British actor. Gabel's global breakout role was portraying computer genius Walter O'Brien in the CBS series Scorpion (2014–2018). Earlier he gained recognition as series regular Dr. Gurpreet "Guppy" Sandhu in the BBC medical drama Casualty (2004–2007), as Dothraki Rakharo in seasons 1 and 2 of the HBO series Game of Thrones (2011–2012), as PE teacher Rob Cleaver in series 4 of BBC One's school-based drama series Waterloo Road (2009) and as DC Jose Rodriguez in the ITV drama Identity (2010).

In 2011, he appeared as Prince Djem in a guest-star-role in the 3-times Emmy awarded TV show The Borgias, and appeared later in 2011 as Shahrouz in the dark comedy Psychoville. He moved to the US and was starting to be cast in US TV shows, as series-regular Detective Adam Lucas in season 3 of Body of Proof (2013). In February 2022, Gabel starred as Sean Tilson in Apple TV's 8-part-thriller Suspicion. In 2024, he appeared as Hassan in the CBS series FBI episode "Creating a Monster".