Scorpion (stylized as </SCORPION>) is an American action drama television series created by Nick Santora for CBS. The series stars Elyes Gabel (Walter O'Brien), Katharine McPhee (Paige Dineen), Eddie Kaye Thomas (Tobias Curtis), Jadyn Wong (Happy Quinn), Ari Stidham (Sylvester "Sly" Dodd) and Robert Patrick (Cabe Gallo). Very loosely based on the life of its executive producer and self-proclaimed computer expert Walter O'Brien, the series centers on O'Brien and his friends helping to solve complex global problems and save lives. The series premiered on September 22, 2014. On October 27, 2014, CBS placed a full season episode order for the first season. In March 2017, CBS renewed the series for a fourth season, which premiered on September 25, 2017.Scorpion received mixed critical reception. On May 12, 2018, CBS cancelled the series after four seasons.