Iain Alan Sutherland Glen (born 24 June 1961) is a Scottish actor. He has appeared as Dr. Alexander Isaacs/Tyrant in three films of the Resident Evil film series (2004–2016) and as Ser Jorah Mormont in the HBO fantasy television series Game of Thrones (2011–2019). Other notable roles include John Hanning Speke in Mountains of the Moon (1990), Larry Winters in Silent Scream (1990) for which he won the Silver Bear for Best Actor from the Berlin International Film Festival, Manfred Powell in Lara Croft: Tomb Raider (2001), Brother John in Song for a Raggy Boy (2003), the title role in Jack Taylor (2010–2016), Sir Richard Carlisle in Downton Abbey (2011), James Willett in Eye in the Sky (2015), and Bruce Wayne in Titans (2019–present).

Early life and education
Glen was born on 24 June 1961 in Edinburgh, Scotland, and educated at the Edinburgh Academy, an independent school for boys (now co-educational), followed by the University of Aberdeen. He then trained in acting at the RADA in London ("because it was the only one that was holding auditions at that particular time"), where he won the Bancroft Gold Medal. His older brother is Hamish Glen, artistic director of the Belgrade Theatre, Coventry and former artistic director of the Dundee Repertory Theatre.