Actor Benedict Samuel is transforming from a Wolf into a Mad Hatter, with the "Walking Dead" alum set to join "Gotham" season three this fall.

TVLine reports that Samuel will play the brainwashing villain Mad Hatter, alias Jervis Tetch. According to the official character description, "Tetch is a talented hypnotist teetering on the edge of madness. He arrives in Gotham with an unwavering desire to find his sister, Alice, a young woman who went missing in the city years ago. It is anyone's guess just how far down the rabbit hole he's willing to go in order to find her."

The role shouldn't be a stretch for Samuel, who had a memorable stint as a member of the murderous Wolves gang on season six of "TWD." Samuel's character was captured by Morgan in an attempt to rehabilitate the Wolf; he later escaped and was eventually killed, but not before playing some mind games of his own, similar to the shenanigans that the Mad Hatter is known for in DC Comics lore.

Samuel's casting is just the latest for "Gotham," which is shoring up its cast with a bunch of new faces for its upcoming season, including James Carpinello (Mario Falcone), Jamie Chung (Valerie Vale), and Maggie Geha (the new Poison Ivy). The show returns for season three on September 19 on Fox.

[via: TVLine]

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