Gotham's ever-growing cast has added even more members to its ensemble. Marina Benedict, who's best known for playing an assassin on Prison Break, and Benjamin Stockham, the young About a Boy star, have both joined the cast of the DC Comics adaptation.

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According to TVLine, Benedict is set to play Cherry -- the owner of a fight club in Gotham's most lethal neighborhood, The Narrows. Cherry's business is said to establish seats of power in a typically-lawless part of the city. Expect to see Benedict's character working with, and against, Ed Nygma, Solomon Grundy, and other iconic villains. You may have also seen Benedict on Torchwood, Burn Notice and Flesh and Bone.

Stockham will guest-star as a friend of young Bruce Wayne, Alex Winthrop. He's the grandson of a museum curator who meets Bruce on his search for a mysterious item. They both end up on the run when dangerous forces target said item. Stockham has also appeared on 1600 Penn and Sons of Tucson.

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Gotham stars Ben McKenzie as James Gordon, David Mazouz as Bruce Wayne, Robin Lord Taylor as Penguin, Erin Richards as Barbara Kean and Sean Pertwee as Alfred Pennyworth. The series is set to kick off its fourth season on FOX beginning Thursday, September 21.