The drama is about a group of men and women, known as dolls, who are charged with carrying out a series of "assignments". They can be imprinted with different memories, skills, language and abilities appropriate to each task.
Penikett (Battlestar Galactica) will play FBI agent Paul Smith who wants to find the dolls, viewed by others as an urban myth. Kranz (Welcome to the Captain) joins as bright-spark programmer Topher Brink who does the imprinting.
Lachman (Neighbours) and Gjokaj takes the role of dolls Sierra and Victor respectively. Both are friends of main doll Echo who begins to become self-aware. Eliza Dushku (Buffy, Angel) has already signed to play Echo.
Fox is planning a seven-episode season of the show for September.
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