Grant Gustin is dating Hannah Douglass. [view couple]
Thomas Grant Gustin (born January 14, 1990), better known as Grant Gustin, is an American actor and singer. He is known for his roles as Barry Allen / Flash on the CW series The Flash and as Sebastian Smythe on the Fox series Glee....
Connect any celebrity with Grant Gustin to see how closely they are linked... romantically!
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