Meet the cast of The Secret Agent

Who does he play? Vladimir is the terrifying First Secretary of the Russian Embassy. Smooth, slick, certain and a ruthless politician, he speaks English with a perfect RP accent.

Where do I recognise him from? The Road to Coronation Street, Gracie! and Ripper Street.

George Costigan

Who does he play? Sir Ethelred, who holds a threatening pressure over Stone. He is politically savvy with an edge.

Where do I recognise him from? He played a slimy, evil villain in the last series of Line of Duty, and also appeared in Happy Valley, Garage, Calendar Girls, and Hereafter.