The Flash episode 2 - Multiplex
In the second episode of The Flash, Flash faces a villain whose power is the ability to multiply himself. Cisco Ramon made up the name Captain Clone for him half way through the episode and at the end he gave him a name that are more familiar to the comic book fans - Multiplex. He was the the first character I got to worked on for The Flash. Like the first season of Arrow, the villains are not quite villainy yet and stilll very grounded visually.