VIDEO: First Look - Broadway's Andy Mientus Guest Stars on THE FLASH

Andy Mientus, who currently plays 'Marius' in Les Miserables on Broadway, will make his first appearance in his guest starring role of 'Pied Piper' in CW's THE FLASH. The character is described as hearing impaired and the first openly gay villain to be featured on the small or big screen. Get a sneak peek below!

On the episode titled "The Sound and the Fury", Dr. Wells' (Tom Cavanagh) former protégée, Hartley Rathaway (Mientus), returns to seek revenge on his mentor after being affected by the particle accelerator explosion.

Now able to manipulate sound waves, the brilliant Rathaway is a dangerous threat to both Wells and THE FLASH (Grant Gustin). Meanwhile, Iris (Candice Patton) is thrilled when she's hired by the Central City Picture News as their newest cub reporter. Unfortunately, her editor (guest star Tom Butler) pairs her with a veteran reporter, Mason Bridge (guest star Roger Howarth), who wants nothing to do with her.

Cisco (Carlos Valdes) recalls his first day on the job at S.T.A.R. Labs when he met Hartley and Caitlin (Danielle Panabaker). Joe (Jesse L. Martin) asks Eddie (Rick Cosnett) for a favor but asks him to keep it a secret from Barry.

John Showalter directed the episode written by Alison Schapker & Brooke Eikmier airing Tuesday, January 27th. Get a sneak peek below!

Mientus makes his Broadway debut in the role of 'Marius' in LES MISERABLES. A Pittsburgh native, he toured the country in the first national tour of Spring Awakeningand appeared in MCC Theater's production of Carrie. On television, he was a series regular on the NBC musical drama Smash, and this season has recurring roles on both theFX comedy ANGER MANAGEMENT and the ABC Family drama Chasing Life.