On the Season 3 premiere episode of The Flash, Barry Allen (Grant Gustin) is enjoying his life — no longer having to save Central City from the bad guys since Kid Flash (Keiynan Lonsdale) has taken over. But then Reverse Flash shows up and causes trouble which provokes Barry to leave his comfortable, retired lifestyle in the alternate universe and return to his life as The Flash.
Reverse Flash is portrayed by Matt Letscher. He’s known for his roles on Castle (Henry Jenkins), Boardwalk Empire (Joseph P. Kennedy), The Carrie Diaries (Tom Bradshaw), Scandal (Billy Chambers), Brothers & Sisters (Alec Tyler), Entourage (Dan Coakley), Eli Stone (Nathan Stone), The New Adventures of Old Christine (Burton Schaefer), and Almost Perfect (Rob Paley), among many others. The Flash airs Tuesdays at 8pm on CW.