Premise: 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 .
Hypothesis: Grant Gustin played the role of Glee antagonist Sebastian Smythe.
Label: ENTAILMENT