The Originals star Maisie Richardson-Sellers, Hustle actor Adrian Lester and Star Trek's Simon Pegg have joined the cast of a brand new Channel 4 thriller series about the battle against a cyber attack. Channel 4 and production company Peacock have commissioned six-part series The Undeclared War, which has been directed and co-written by multiple BAFTA winner Peter Kosminsky, who directed Wolf Hall and The State.