Gareth S. Armstrong (born 25 June 1948) is a British actor, director, teacher and writer.
Armstrong began his career by acting in school plays at the Bishop Gore School, Swansea. At the age of 16 he joined the National Youth Theatre; and went on from there to study drama at Hull University.
On stage he has played leading roles in most of the UK's regional theatres including Birmingham Rep., Nottingham Playhouse and the Bristol Old Vic where parts ranged from Mamet to Molière. He has specialised in Shakespearean theatre where roles have included Romeo, Richard III, Oberon, Macbeth, Shylock and Prospero. He has also toured to over fifty countries and all over the United States with his own one-man show Shylock, in which Shakespeare's principal Jewish character is seen from the viewpoint of Tubal, the Bard's only other male Jewish character and Shylock's only friend in the original play. The play has won awards in New Zealand, Canada, Spain and Germany and been translated into Catalan, Spanish, Italian, French and Russian as well being performed on Dutch television and Romanian radio. As a member of the Royal Shakespeare Company he worked in Stratford and London and has performed in the West End in plays by Noël Coward, Tom Stoppard, Agatha Christie and most recently in Yes, Prime Minister (2013). He played at Shakespeare's Globe in 2008, 2010, and 2011.
Gareth Armstrong is a junior footballer currently playing for Troon FC in the West of Scotland Super League Premier Division.
A member of Ayr United's football academy, Armstrong made his first team debut in the Scottish Second Division as a substitute on 7 May 2011 against Brechin City F.C. at Glebe Park. Ayr United won promotion via the play offs and he made his Scottish First Division debut on the opening day of the 2011–12 season.
He moved into Junior football to gain experience of regular first-team football after a long education with Ayr United. Since moving to Troon FC his versatility has seen him used at right-back, centre-back & midfield, but he won the Player of the Year award in season 2012-13 at left-back and has been most consistently used here since.