About
Grant Gustin is an American actor best known for his role as Barry Allen / The Flash on The CW series The Flash, part of the Arrowverse franchise. He also gained recognition for his role as Sebastian Smythe on the Fox series Glee. Prior to his television work, Gustin trained in musical theater, with a notable role in the national tour of West Side Story and originating the lead role in the Broadway production of Water for Elephants.
Career Timeline
West Side Story National Tour
Grant lands a role in the West Side Story tour, starting his career in performing arts.
Glee Recurring Role
His role as Sebastian Smythe on Glee gives him broader exposure.
Arrowverse Introduction
Gustin debuts as Barry Allen in Arrow, setting up his solo series.
The Flash Series Premiere
The Flash premieres, becoming a hit series and solidifying Gustin's fame.
The Flash Crossover Events
Continued success with The Flash, including multiple crossover events with other Arrowverse shows.
The Flash Series Finale
The Flash concludes after nine seasons, a major milestone for Gustin.
Water for Elephants on Broadway
Gustin returns to his theater roots, originating the lead role on Broadway.
Continuing Acting Career
Grant continues acting in TV and potentially theater, leveraging his established fan base.
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Last updated: February 25, 2026