The Flash is known as a superhero with a strong rogues gallery, and the first season of the show wasted no time in showcasing some of the major players. It quickly established Reverse-Flash as the overarching villain of the season, raced through more minor ones such as The Mist and Peek-A-Boo, and introduced us to recurring rogues Captain Cold and Heat Wave, wholl now be heading to spin-off Legends of Tomorrow. There was plenty to test the Scarlet Speedster, with most of the enemies possessing metahuman abilities just like he does, but obviously being the hero he always managed to come out on top in the end. With Eobard Thawne defeated in the season finale, theres been plenty of talk about wholl be lining up against Barry Allen when the second season of the show begins in October. Naturally that sophomore year will have to try and outdo what came before it, without retreading over too much of the same ground, so therell have to be another varied and dangerous mix of bad-guys for the S.T.A.R Labs team to face off against. Despite the fact that a great deal have already been introduced, theres plenty more left on the bench ready to step up and have a go at defeating The Fastest Man Alive