"The Flash" has just about completed its Rogues gallery: Grey Damon has been cast on The CW series as Mirror Master, CBR has learned from Warner Bros. Television. He's set to appear in the fourth episode of season three, which should air in late October or early November.

There have been two significant Mirror Masters in DC Comics history, but "The Flash" TV series will use the original: Sam Scudder, created by John Broome and Carmine Infantino and first introduced in 1959's "The Flash" #105. Here's WBTV's official character description:

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"One of the Flash's most infamous Rogues, Sam Scudder -- aka Mirror Master -- is a smooth criminal with a huge ego. Upon discovering he now has the power to travel through any reflective surface, Scudder embarks on a massive crime spree to prove himself the greatest thief that Central City has ever seen."

Mirror Master is likely the most prominent of The Flash's classic "Rogues" to not appear in the show's first two seasons. Previously, the series has introduced Captain Cold (Wentworth Miller), Heat Wave (Dominic Purcell), Captain Boomerang (Nick Tarabay), The Trickster (both Mark Hamill and Devon Graye), Golden Glider (Peyton List) and Pied Piper (Andy Mientus). In the comics, various groups of Rogues have frequently functioned as a team against The Flash -- there's no firm indication yet that'll happen on the TV show, and Damon has currently only been announced for one episode, but this news at least provides further room to speculate on the possibility.

Damon currently co-stars on NBC's "Aquarius" as Detective Brian Shafe. He's got prior experience on The CW as Grayson Montrose on "Star-Crossed, and played Hastings Ruckle on the final season of "Friday Night Lights."

This announcement follows That Hashtag Show reporting a casting description for Mirror Master earlier on Wednesday.

"The Flash" returns for its third season on The CW at 8 p.m. Tuesday, Oct. 4.