The Flash: 10 Things You Didn't Know About Grant Gustin
4. He Played Twins On CSI: Miami
While Gustin's debut role on television was well-known among Flash fans due to the unbelievable heights of popularity that Glee reached, his second role is somewhat less-known.
Appearing in a single episode of CSI: Miami - during its tenth and final season - in 2012, he portrayed identical twins Scott Ferris and Trent Burton who had been separated at birth and brought back together when their biological father had been killed. Though he wasn't on-screen all that often, he did a great job adding unique nuances to each character - sporting different hairstyles while bringing Scott and Trent to life.
Ironic that he starred on CSI considering that he would go on to become a CSI on The Flash.