Recurring cast includes Ben Chaplin, Margo Martindale, David Arquette, Elizabeth Marvel, Katja Herbers, Chris Diamantopoulo, Ashley Romans, Tom Wlaschiha and Mathilde Ollivier.
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“Citadel", the $300 million-budgeted, spy action TV series created by Josh Appelbaum, Bryan Oh and David Weil, stars Richard Madden and...