Deadline are reporting that Alaina Huffman, who has previously featured on Supernatural and Smallville, has joined the cast of The 100's final season.
She's set to portray Nikki, "One of the newly-awakened Eligius IV convicts, Nikki is a bank robber and spree-killer who is both unpredictable and fierce. She will take on an unexpected leadership role, advocating for her people in the complicated new world of Sanctum.”
