Citadel The Human Enigma (Season 1, Episode 1)
TV-14
TV Episode | 42 min | Action, Drama, Thriller

Citadel

The Human Enigma (Season 1, Episode 1)

TV-14

TV Episode | 42 min | Action, Drama, Thriller

Mason Kane of spy organization Citadel crosses a new organization , Manticore, leading to a bad accident. Eight years later, Mason is living quietly as Kyle Conroy, with no memory of his past, until an old colleague asks for his help.

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Cast	+ Add Cast
22 cast members

Name	Known for
Richard Madden Mason Kane Mason Kane See fewer	Game of Thrones (2011)
Priyanka Chopra Jonas Nadia Sinh Nadia Sinh See fewer	Barfi! (2012)
Ashleigh Cummings Abby Conroy Abby Conroy See fewer	The Goldfinch (2019)
Roland Møller Anders Silje / Davik Silje Anders Silje / Davik Silje See fewer	Land of Mine (2015)
Osy Ikhile Carter Spence Carter Spence See fewer	Childhood's End (2015)
Caoilinn Springall Hendrix Conroy Hendrix Conroy See fewer	The Beast Within (2024)
Lesley Manville Dahlia Archer Dahlia Archer See fewer	Another Year (2010)
Stanley Tucci Bernard Orlick Bernard Orlick See fewer	Big Night (1996)
Moira Kelly Joe Joe See fewer	One Tree Hill (2003)
Lev Gorn Gregor Yovanovich Gregor Yovanovich See fewer	For All Mankind (2019)
Gianfranco Terrin Italian Doctor Italian Doctor See fewer	Carthago (2022)
Spencer Mulligan Gregor's Handler Gregor's Handler See fewer	Avengers: Endgame (2019)
Timothy Busfield Therapist Simmons Therapist Simmons See fewer	The West Wing (1999)
Peter Gerety Secretary McCulough Secretary McCulough See fewer	Flight (I) (2012)
Ilan Muallem Manticore Agent #1 Manticore Agent #1 See fewer	The Walking Dead (2010)
Andy Watts Manticore Agent #2 Manticore Agent #2 See fewer	The Gray Man (2022)
Gary Weeks Manticore Agent #3 Manticore Agent #3 See fewer	Outer Banks (2020)
Erin Boswell Marjorie (BBC Reporter) Marjorie (BBC Reporter) See fewer	The Outsider (2020)
Kineta Kunutu Billie Billie See fewer	Citadel (2023)
Sarah Martins Sandra Sandra See fewer	Citadel (2023)
Rene Costa Bar Patron (uncredited) Bar Patron (uncredited) See fewer	Remi Milligan: Lost Director (2025)
Andy M Milligan Guard (uncredited) Guard (uncredited) See fewer	Belgravia: The Next Chapter (2024)