Citadel might just be Prime Video's most audacious show yet. The streamer's second most expensive show of all time, it's hoped that the global-spanning six-episode first season is followed by numerous spin-offs, which will be made in different countries.
That means there's an awful lot riding on Citadel, which revolves around the titular private spy agency and its highly talented agents. So which actors have been tasked with helping to launch the series as members of the Citadel cast? And who are they playing?
