The Secret Part 1 (Season 1, Episode 1)
TV-MA
TV Episode | 46 min | Biography, Drama, Thriller

The Secret

Part 1 (Season 1, Episode 1)

TV-MA

TV Episode | 46 min | Biography, Drama, Thriller

Respectable dentist Colin Howell meets and falls in love with Hazel Buchanan at his local Baptist church. The two begin an adulterous affair that will lead them to enter into a deadly pact.

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Cast	+ Add Cast
20 cast members

Name	Known for
James Nesbitt Colin Howell Colin Howell See fewer	The Hobbit: An Unexpected Journey (2012)
Genevieve O'Reilly Hazel Buchanan Hazel Buchanan See fewer	The Dry (2020)
Laura Pyper Lesley Howell Lesley Howell See fewer	Reign of Fire (2002)
Glen Wallace Trevor Buchanan Trevor Buchanan See fewer	The Secret (2016)
Jason Watkins Pastor Hansford Pastor Hansford See fewer	The Crown (2016)
James Greene Granda Harry Clarke Granda Harry Clarke See fewer	What a Girl Wants (2003)
David Pearse Andy Comerford Andy Comerford See fewer	The Banshees of Inisherin (2022)
Patrick FitzSymons Derek McAuley Derek McAuley See fewer	High-Rise (2015)
Ali White Hilary McAuley Hilary McAuley See fewer	Fifty Dead Men Walking (2008)
Eileen McCloskey Dentist Receptionist Dentist Receptionist See fewer	Game of Thrones (2011)
Riley Hamilton Matthew Howell Matthew Howell See fewer	The Secret (2016)
Nina Woods Lauren Howell Lauren Howell See fewer	The Secret (2016)
Murray Speers Daniel Howell Daniel Howell See fewer	The Secret (2016)
Jack Erdis Andrew Buchanan Andrew Buchanan See fewer	The Secret (2016)
Sophie Mellotte Lisa Buchanan Lisa Buchanan See fewer	The Secret (2016)
Rory Bradley Matthew (uncredited) Matthew (uncredited) See fewer	The Secret (2016)
Odhran Cassidy Dylan (uncredited) Dylan (uncredited) See fewer	Zombie Dust (2012)
Jonathan Harden DC Devine (uncredited) DC Devine (uncredited) See fewer	Time (2021)
Richard Hill Church Band Musician (uncredited) Church Band Musician (uncredited) See fewer	Comic Book Men (2012)
Shauna Lawson Valerie Allen (uncredited) Valerie Allen (uncredited) See fewer	Duets (2015)