Grant Gustin performed in a television series.
Arrow is an American action crime television series developed by writer/producers Greg Berlanti , Marc Guggenheim , and Andrew Kreisberg . Glee is an American musical comedy-drama television series that aired on the Fox network in the United States from May 19 , 2009 , to March 20 , 2015 . Grant Gustin . He is known for his role as Barry Allen / the Flash ( based on the DC Comics character of the same name ) on the CW series The Flash and Arrow , both in the Arrowverse television franchise , and his role as Sebastian Smythe on the Fox series Glee . The Flash is an American television series developed by Greg Berlanti , Andrew Kreisberg and Geoff Johns , airing on The CW .