The Flash Spoilers: Another Prison Break Favourite Joins Wentworth Miller To Play Villain

The Flash producers must have loved Prison Break.

After already announcing the addition of Wentworth Miller as Captain Cold, TVLine has that Robert Knepper will reprise his role as the The Clock King to face-off against Barry Allen. Clock King initially appeared on The Flash‘s sister series Arrow.

The Clock King is the first villain to show up in both Starling and Central City. In addition, the show’s EP, Andrew Kreisberg said that The King will be joined by another new enemy, just to make Barry’s life “a real challenge.”