TV Line this afternoon revealed that Smash alum Andy Mientus has landed the role of the openly gay Flash villain The Pied Piper, aka Hartley Rathaway. Mientus will appear in the 11th and 12th episodes of Season 1.
Here’s how they describe The Flash take on the character:
Hartley is a bona fide genius who used to work at S.T.A.R. Labs until a falling out with his mentor, Harrison Wells (Tom Cavanagh). The particle accelerator robbed Hartley of his hearing, but inspired him to create a series of sonic weapons that he uses in an effort to punish Wells by destroying his new protege: The Flash.