Thoros

"You've got nothing to fear from us, son. The Lords of Westeros want to burn the countryside; we're trying to save it."

- Thoros to Hot Pie

Thoros, commonly known as Thoros of Myr, is a character in the third season. He is played by Paul Kaye. Thoros is a red priest of the Lord of Light and a noted warrior.

Background
Thoros of Myr is a red priest of the Lord of Light from the Free City of Myr, in the continent of Essos. He was tasked by the High Priest to turn King Robert Baratheon away from the Seven and make him see that the Lord of Light is the one true god, a task at which he failed. This failure to convert King Robert and thus failing his mission lead him to become a drunk. Though a priest, he is also a noted warrior and fighter, famous for using a sword coated with wildfire which he sets ablaze before combat as a way of intimidating his enemies.

He fought for King Robert Baratheon in the Greyjoy Rebellion. He was one of the first men through the breach during the Siege of Pyke, stabbing and terrifying the Ironborn with his flaming sword.

Season 1
Jory Cassel and Jaime Lannister reminisce about the Siege of Pyke. Jory swears that he will remember Thoros charging through the breach with his blazing sword until his dying day.

Season 3
Thoros of Myr, along with Anguy and other members of the Brotherhood Without Banners, runs into Arya, Gendry and Hot Pie. Interested on how they managed to escape from Harrenhal, he convinces the children to come with them at a local inn. Later, Sandor Clegane is captured by the Brotherhood, and he reveals the true identity of Arya to them. The Brotherhood tries to convict Sandor of crimes, because of his long service to the Lannisters, but cannot find anything against him. Arya speaks up, and accuses him of killing her friend Mycah. He is sentenced to Trial by combat by Beric Dondarrion. After Clegane kills Beric during the fight, Thoros quickly calls upon the Lord of Light to revive Beric, repeatedly chanting "LORD cast your light upon this man, your servant. Bring him back from death and darkness. His flame has been extinguished, restore it!", and in a few short seconds, Beric is alive and breathing again, his wounds healed as well.

Ser Jorah Mormont also mentions the Siege of Pyke and Thoros's flaming sword when reminiscing about his knighthood with Ser Barristan Selmy.

Some time later, the Brotherhood is found by Melisandre who is looking for a blood relative (Gendry) of Stannis Baratheon, in order to be able to create more Shadows. She is surprised to find Thoros among them, and berates him for giving up on his mission to convert King Robert to their religion. Thoros takes her to Beric, where she examines him and realizes that he has been brought back from death. When she asks Thoros how many times he brought him back, he responds with six. Stunned, she claims that he should not have that kind of power, to which he simply remarks that he has no power, he only asks the Lord for favors, and the Lord responds. Thoros then confesses how he had always had a large lack of faith in the Lord of Light, and never took his duties seriously because of them, until the day that Gregor Clegane killed Beric, his friend, and Thoros was called upon him to revive him. When he it worked, Thoros's faith was restored.

Melisandre convinces Beric and Thoros to give her Gendry in exchange for gold, and because the Lord of Light requires him.

Behind the scenes
Thoros was an unseen character in the first season. He was confirmed as a character in the third season in May 2012. Paul Kaye was announced in the role in July 2012. Asim Ahmad was originally going to play the role, but due to scheduling conflicts he had to back out of it. Ahmad will play a different, minor role in the series.

In the books
In the A Song of Ice and Fire novels, Thoros is described as tall, fat, shaved bald, and wearing lose fitting red robes so faded that they appear pink. After some time spent in the Brotherhood, he becomes a loose-skinned, grey-haired man in faded robes and piecemeal armor. Thoros originally was sent to Westeros by his order to convert King Aerys II Targaryen to the faith of R'hllor, because of the King's obsession with fire. However, his efforts to preach his religion were in vain, and combined with the atrocities of Aerys' reign he came to question his own faith and grew despondent. Following Robert's Rebellion, Thoros became a regular hanger-on in the court of King Robert Baratheon, kept on in part due to his martial skills. King Robert was also fond of keeping around various interesting foreign visitors as drinking companions, so Thoros also stayed at court due to the good will he enjoyed with Robert.

During his time in King's Landing Thoros became a noted tourney champion, besting many skilled opponents with his flaming sword, such as Sandor Clegane, who is afraid of fire. Despite his many victories, and popularity with the King, Thoros earned the animosity of master blacksmith Tobho Mott, who regarded Thoros' habit of dousing his blades in wildfire - which subsequently wrecked the steel - as desecration of his work.

Thoros competes in the Tourney of the Hand, unseating Beric Dondarrion in the joust. The next day he wins the melee competition. Eddard Stark orders Thoros to accompany Lord Beric Dondarrion to arrest Ser Gregor Clegane for his raids in the Riverlands. Though Beric briefly appeared in the same scene in the TV series, Thoros was absent.

The TV version of Thoros shares several characteristics with fellow Brotherhood member from the books Tom O'Sevens who has not appeared in the show.