'Grimm': Sebastian Roche and Neil Hopkins cast for a game of cat and mouse

roche-hopkins-getty.jpgLooks like "Grimm" is getting a couple more people with creepy character pasts to join the show. Zap2it has exclusively learned that Sebastian Roche and Neil Hopkins have signed on for an upcoming episode.

Roche, who played Mikael on "The Vampire Diaries" and Balthazar on "Supernatural," will play a Edgar Waltz, a hundjager. Waltz comes to town try to catch Ian Harmon (Hopkins), but it certainly won't be easy. Hopkins played Claude Crane on "True Blood" and was also on "LOST" as Liam Pace, the lead singer of Drive Shaft.

Hopkins is not the first "LOST" alum to join the series. Titus Welliver is on Friday's (March 2) episode and Daniel Roebuck was in the show earlier in the season.

The episode is scheduled to air in April. It is appropriately titled "Cat and Mouse."

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