Prison Break star Wentworth Miller is set to play the villain on the Tv adaptation of comic book series The Flash after signing up to portray Leonard Snart.

In the popular DC Comics, Snart's alter-ego, Captain Cold, is the leader of the Rogues, and a dastardly enemy of The Flash.

Grant Gustin will portray Barry Allen, who becomes the speedy superhero, on the show, which will debut in America later this year (14).

Danielle Panabaker, Carlos Valdes, Jesse L. Martin, Candice Patton, Robbie Amell and Tom Cavanagh have also joined the cast.