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Aislín McGuckin (born 1974) is a Northern-Irish actress. McGuckin was born in Newry, County Down, Northern Ireland. Since 2004 Aislin McGuckin has been married to Aidan McArdle.[1] She is best known as Dr. Liz Merrick in Heartbeat, notably, she was one of the two doctors to survive with her life.  She has also appeared in theatre, various minor roles in TV and movies including The Nephew and The White Countess. She plays Letitia MacKenzie, wife of Clan Chieftain Colum MacKenzie in Outlander, the Starz television series based on Diana Gabaldon's series of books.


She trained at Rose Bruford College of Theatre & Performance, which is located in South-East London.[1]



Year Movie Character
1996 Trojan Eddie Kathleen
1998 The Nephew Aislín Brady
2005 The White Countess Maria


Year Title Role
1995 Casualty Niamh Quinn
1998 Amongst Women (TV Mini-Series) Nell
The Unknown Soldier (TV Movie) Jenny Davis
1999 David Copperfield (TV Mini-Series) Emily
1998-2000 The Creatives Rhona Platt
2003-2004 Heartbeat Dr. Liz Merrick
2008-2009 Holby City Callie Taylor
2012 New Tricks Laura Marsh
2014-2015 Outlander Letitia MacKenzie

Selected stage appearancesEdit

Year Title Role Theater
April 2005 Twelfth Night Olivia Royal Shakespeare Theatre, Stratford-upon-Avon
February 2009 The Home Place Grand Opera House, Belfast
March 2010 The Duchess of Malfi Title role Greenwich Theatre, London
May 2011 Macbeth Lady Macbeth Royal Shakespeare Theatre, Stratford-upon-Avon


  1. 1.0 1.1 Bell, Jane (16 February 2009). "There are too few really good roles for women." Belfast Telegraph. p. 9. Accessed 28 May 2010.

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