Citadel is all set to debut on Prime Video on Friday. Here's everything that you need to know about the ambitious spy series, from who plays who, a rundown of behind-the-scenes drama, and what's in store for the future.
Richard Madden gained worldwide popularity with the fan favorite character Robb Stark on Game of Thrones. He will be next seen in Citadel, co-starring Priyanka Chopra.