Gareth appeared in the 2006 BBC documentary The Cult of Blake's 7.
Gareth appears in the science-fiction comedy drama CD series "Soldiers Of Love" as Arran Arkenstein, The Editor (Nermal Hammond), Hywel, and ANET.
Gareth has a brother, Harvey Thomas.
Gareth is interested in Viking history and would have loved to do research work in this field.
Gareth has brown eyes and originally had curly brown hair, which is now grey-white.
Gareth is 6'' tall.
Gareth was Terry Nation's first choice to play the part of "Roj Blake" in his science-fiction series Blake's 7.
Gareth is a big fan of the British sitcom Dad's Army.
On July 13th, 1997, Gareth made a surprise appearance at the SFX Awards Ceremony to hand Babylon 5 creator J. Michael Straczynski, who is a big fan of Blake's 7, his SFX award. Gareth was wearing his original Blake costume from the final episode of the series.
Gareth's first US convention appearance was at Scorpio 3 Con on July 5th, 1985.
After Gareth's departure from Blake's 7, the show successfully continued for another two series. Gareth was concerned that casting directors might think he was still connected to the show, and when he returned for the final episode of the fourth series, he wanted his character, "Blake", to be killed off once and for all.
In 1990 Gareth nearly got the lead role as "Prof. Geoffrey Hoyt" on the hospital drama series Medics, but the part went to Tom Baker instead. Four years later, he guest starred as "George Robinson MP" in the episode Going West.
Gareth stars in the first volume of MJTV's CD series "The Actor Speaks".
Speaking about his dream role, Gareth said he would love to play the role of Othello on stage.
Before moving from Wales to England at the age of six, Gareth spoke Welsh, and has played Welsh and English characters during his career.
Gareth Thomas played the leading role in the British science-fiction series Blake's 7, but left the show after the second season to join the Royal Shakespeare Company.
Because of the tight schedule on the TV series Blake's 7, Gareth sometimes hid pages of his script in various areas on the Liberator set.
Gareth has been twice nominated for a BAFTA Best Actor Award for his performances in "Stocker's Copper" (1972) and "Morgan's Boy" (1984).
Gareth has been an associate of the Royal Academy of Dramatic Art since 1996.
Gareth attended King's School in Canterbury, England, and studied English and History for one year at Oxford University.
Gareth Thomas has appeared in the following films:
- Quatermass and the Pit (1967) (uncredited)
- The Ragman's Daughter (1972) (Tom)
- The Watercress Girl (1972) (Frank Oppidian)
- Sutherland's Law (1972) (Alec Duthie)
- Blue Movie Blackmail (aka Mafia Junction, USA) (1973) (Detective)
- Juggernaut (aka Terror on the Britannic, USA) (1974) (Liverpool Joiner)
- A Pitcher of Snakes (1976) (uncredited)
- Peter and Paul (1981) (Julius)
- Strangers and Brothers (1984) (Arthur Mounteney)
- Morgan's Boy (1984) (Morgan Thomas)
- Bewitched (1985) (Owen Bosworth)
- Duel with An Teallach (1985) (Charles Handley)
- Storia di una capinera (aka Sparrow) (1993) (Corrado)
- Waterland (1992) (Publican)
- Merlin (aka Merlin: The Magic Begins) (1998) (Blaze)
- Shipman (2002) (Rev Denis Thomas)
Gareth Thomas has appeared in 9 Big Finish Doctor Who audio adventures, including:
- Storm Warning (as Lord Tamworth)
- Dalek Empire: Invasion of the Daleks (as Kalendorf)
- Dalek Empire: The Human Factor (as Kalendorf)
- Dalek Empire: Death to the Daleks (as Kalendorf)
- Dalek Empire: Project Infinity (as Kalendorf)
- Dalek Empire II: Dalek War #1 (as Kalendorf)
- Dalek Empire II: Dalek War #2 (as Kalendorf)
- Dalek Empire II: Dalek War #3 (as Kalendorf)
- Dalek Empire II: Dalek War #4 (as Kalendorf)
Gareth Thomas has appeared in the following radio plays:
- The Taff End (BBC Radio 4, March 1989)
- New World in the Mourning (BBC Radio 4, March 1989)
- Edwin Drood (BBC Radio 4, March 1990)
- Jim Davis (BBC Radio 4, May 1990)
- Rob Roy (BBC Radio 4, January 2002)
- Offside in Bohemia (BBC Radio 4, December 2002)
- Offside in Bohemia (BBC Radio 3, May 2003)
- Look Back in Anger (BBC Radio 4, April 2006)
Gareth has never seen an episode of his own television series Blake's 7.
(about conventions and his fans):
Gareth Thomas: It is extremely hard work, but enormous fun. If I wanted to find out anything about Blake's 7, I'd phone my own fans, because they know more than I do. (laughs)
(on the question why he was only in two of the four series of "Blake's 7"):
Gareth Thomas: I did only two, because I wanted to move on. I didn't want to get totally stereo-typed as - I hesitate to use the word "hero", because that one can't be, not with a face like mine - but no, I wanted to move on, and I went to the Royal Shakespeare Company after that.
(about demanding and challenging roles):
Gareth Thomas: I love a challenge, whether it's a big role or one where I'm cast against type. Orsino wasn't an obvious one for me - I'm not the prettiest actor in the world - but I like that kind of unexpected side of working on a role.