Tom Hopper

Thomas Edward Hopper (born 28 January 1985 in Coalville, Leicestershire, England) is an English actor. He has appeared as Sir Percival in Merlin (2010-12), Billy Bones in Black Sails (2014-17), Dickon Tarly in Game of Thrones (2017) and Luther Hargreeves in The Umbrella Academy (2019-20). He also had a part in Terminator: Dark Fate (2019), as William Hardell, Grace's commanding officer in the Resistance.

I met Tom at Film & Comic Con Glasgow in August 2017.

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Wikipedia

Staz Nair

Staz Nair (born 17 June 1991 in London, England) is a British actor and model of Russian and Indian origins. He is best known for playing Qhono in the television series Game of Thrones (2016-19) and as William Dey in the television series Supergirl (2019-20).

I met Staz at Film & Comic Con Glasgow in August 2017.

Link:
IMDb

Hugh Mitchell

Hugh Mitchell (born 7 September 1989 in Winchester, Hampshire, England) is an English actor, best known for playing Colin Creevey in Harry Potter and the Chamber of Secrets (2003).

I met Hugh at Collectormania Glasgow in August 2013.

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Wikipedia

Rupert Vansittart

Rupert Nicholas Vansittart (born 10 February 1958 in Cranleigh, England) is an English character actor. He has appeared in a variety of roles in film, television, stage and radio, often playing comic characters. He is best known for his role as Lord Ashfordly in the ITV drama Heartbeat (1992-2009) and for playing Lord Yohn Royce in the HBO series Game of Thrones (2014–2019). He also played Lord Bottoms in Braveheart (1994).

I met Rupert at Collectormania Glasgow in August 2013.

Links:
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Rupert Vansittart as Lord Bottoms in Braveheart 

Michael Carter

Michael Carter (born 29 June 1947 in Dumfries, Scotland) is a Scottish actor of film, stage and television, known for portraying Gerald Bringsley in An American Werewolf in London (1981), Bib Fortuna in Return of the Jedi (1983), Radu Molasar in The Keep (1983) and Von Thurnburg in The Illusionist (2006).

I met Michael at Collectormania Glasgow in August 2013.

Links:
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Wikipedia

Michael Carter as Bib Fortuna in Return of the Jedi

Billy Hartman

Billy Hartman (born 1957 in Edinburgh, Scotland) is a Scottish actor, best known for playing the part of Terry Woods on ITV's Emmerdale from 1995 until his character was killed off in 2011 after 16 years. He also played Dougal MacLeod, cousin of the Connor MacLeod, in Highlander (1986) and appeared as Frank in the 1986 slasher film Slaughter High.

I met Billy at Collectormania Glasgow in August 2013.

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Billy Hartman as Dougal MacLeod in Highlander

John Callen

John Callen (born 4 November 1946 in England) is an English-born New Zealand actor and director. He portrayed Óin, brother of Glóin in the 2012-14 The Hobbit film trilogy.

I met John at Collectormania Glasgow in August 2013.

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IMDb
Wikipedia