Gustin made his on-screen debut in 2010 as a minor character in the television series “Glee.” television series “The Flash,” which is part of the Arrowverse shared world of episodes. Thomas Grant Gustin is an American singer and actor best known for portraying Barry Allen/The Flash in the C.W. Though followers are keenly waiting to see pictures of Andrea & Grant Gustin daughter, the couple still needs to give a hint about Juniper’s look to avoid unwanted publicity and possible speculations.