Game of Thrones Season 3 Cast

This isn't a fanlist, this is the actual cast of season 3 and these are the only actors that I know of so far. I tried to make this list spoiler free without giving much away for those who has not read the books.

A Storm of Swords has been split into two seasons. Season 3 will cover the first half and Season 4 the other. That's probably why some characters are missing.
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1.
Mackenzie Crook
Mackenzie Crook, one of British comedy's best-known faces, who collected Star Wars figurines as a child, is now immortalized in plastic as a six-inch-high pirate action figure. He was born Paul Mackenzie Crook on September 29, 1971, in Maidstone, Kent, England, UK. His father worked for British Airways...
“ Orell
Wildling raider and skinchanger ” - Punisher853
 
2.
“ Jojen Reed
A greenseer who travels with Bran ” - Punisher853
 
3.
“ Meera Reed
Jojen's sister ” - Punisher853
 
4.
Clive Russell
Clive Russell was raised in Fife, Scotland, UK from 3 months old. He originally trained as a teacher, but when his drama lecturer resigned and took over a theatre in the provincial town of Bolton, Lancaster, Russell joined him. Russell has been working solely in film and television since 1991.
“ Brynden ''Blackfish'' Tully
Catelyn Tully's uncle ” - Punisher853
 
5.
Kerry Ingram
Kerry's first professional stage role was in Oliver! at the Theatre Royal, Drury Lane. She then went on to play the lead role of Matilda Wormwood in Matilda, a Musical in Stratford Upon Avon's Courtyard Theatre. The show was a success and It then transferred to West End and Kerry was the only original Matilda to transfer...
“ Shireen Baratheon
Stannis Baratheon's daughter ” - Punisher853
 
6.
Nathalie Emmanuel
Actress, Furious 7
Nathalie Emmanuel is an English actress best known for her role as Missandei on the HBO fantasy series Game of Thrones and Ramsey in Furious 7 (2015). In 2006, she made her television break by starring as Sasha Valentine in the soap opera Hollyoaks. In 2015 she starred in Furious 7 and Maze Runner: The Scorch Trials.
“ Missandei
Slave interpreter for Kraznys mo Nakloz ” - Punisher853
 
7.
“ Lord Beric Dondarrion
Leader for the Brotherhood Without Banners ” - Punisher853
 
8.
“ Thoros of Myr
A red priest and member of the Brotherhood Without Banners ” - Punisher853
 
9.
“ Anguy
Also know as the Archer. Member of the Brotherhood Without Banners. ” - Punisher853
 
10.
Diana Rigg
Diana Rigg is an English actress. She has had an extensive career in film and theatre, including playing the title role in Medea, both in London and New York, for which she won the 1994 Tony Award for Best Actress in a Play. Rigg made her professional stage debut in 1957 in The Caucasian Chalk Circle...
“ Olenna Redwyne
Also know as the Queen of Thorns. Grandmother to Margaery and Loras Tyrell. ” - Punisher853
 
11.
Kristofer Hivju
A second generation Norwegian actor, Kristofer Hivju was born on 7 December 1978 in Oslo. His father Erik Hivju is a prominent character actor who appeared with his son in the short film Flax where Kristofer shared screenwriting credit with director Bård Ivar Engelsås. Kristofer made his American Film debut in Matthijs van Heijningen Jr.'s 2011 remake of John Carpenter's The Thing...
“ Tormund Giantsbane
Wildling raider ” - Punisher853
 
12.
Tara Fitzgerald
Actress, Legend
Tara Fitzgerald was born in Sussex, England. Her mother, Sarah Fitzgerald, is Irish, and her father, Michael Callaby, was Italian. Shortly after her birth, her family moved to Freeport, in the Bahamas where her grandfather, David Fitzgerald, was a well-established lawyer. Her sister, Arabella Fitzgerald...
“ Selyse Baratheon
Stannis Baratheon's wife ” - Punisher853
 
13.
Tobias Menzies
Tobias was born in London. He graduated from the Royal Academy of Dramatic Art (RADA) in 1998 and began his acting career in popular UK series such as Foyle's War, Midsomer Murders, and Casualty. He also appeared in the controversial drama A Very Social Secretary. He is best known to international audiences as Marcus Junius Brutus in the television series Rome...
“ Edmure Tully
Catelyn Tully's brother ” - Punisher853
 
14.
Anton Lesser
British actor Anton Lesser (b. 1952) has played many of the principal Shakespearian roles for the Royal Shakespeare Company (Associate Artist since 1990), including Petruchio, Romeo and Richard III. He is very active in radio (BBC) and spoken word audio. Over a dozen recordings range from Paradise Lost and Homer to the title role in Hamlet...
“ Qyburn
Ex-maester and member of the Brave Companions ” - Punisher853
 
15.
Iwan Rheon
Iwan Rheon (born 13 May 1985) is a Welsh actor, singer and musician, best known for portraying Ramsay Bolton in the HBO series Game of Thrones, Simon Bellamy in the E4 series Misfits and Ash Weston in the ITV sitcom Vicious. Rheon was born in Carmarthen, Carmarthenshire. When he was five years old...
“ Ramsay Snow
Bastard son of Lord Roose Bolton ” - Punisher853
 
16.
Ciarán Hinds
Actor, Frozen
Ciaran Hinds was born in Belfast, Northern Ireland on February 9, 1953. He was one of five children and the only son. His father was a doctor who hoped to have Ciaran follow in his footsteps, but that was not to be. It was his mother Moya, an amateur actress, who was the real influence behind his decision to become an actor...
“ Mance Rayder
The King-Beyond-the-Wall ” - Punisher853
 
17.
Dan Hildebrand
Dan Hildebrand is best known as Kraznys mo Nakloz in "Game of Thrones" as well as for the two separate characters he played on "Deadwood" and as a recurring character on the FX Network series "Sons of Anarchy". A classically trained actor, he has played many different character parts in TV, films and theatre.
“ Kraznys mo Nakloz
A slaver from Astapor ” - Punisher853
 
18.
“ Prendahl na Ghezn
Captain of the mercenary company Second Sons ” - Punisher853
 
19.
Ed Skrein
Actor, Deadpool
Ed Skrein grew up in North London, graduated with a degree in Fine Arts from Central Saint Martins, and is one of the most highly versatile artists of his generation. He was selected by Screen International as one of their "Stars of Tomorrow" in 2013, which showcases the next generation of talent from the UK...
“ Daario Naharis
Lieutenant of the mercenary company Second Sons ” - Punisher853
 
20.
“ Grey Worm
Captain of the Unsullied ” - Punisher853
 
21.
Noah Taylor
Noah George Taylor, the elder of two boys, was born in 1969 in London, England, to Maggie (Miller), a journalist and book editor, and Paul Taylor, a copywriter and journalist. His family lived in both England and New Zealand before returning to his parents' native Australia in 1974. His parents divorced when he was a teenager and his father remarried--to theater publicist...
“ Locke (aka Vargo Hoat but slightly changed and obviously renamed) ” - Punisher853
 
22.
“ Lothar Frey aka Lame Lothar
Son of Lord Walder Frey ” - Punisher853
 
23.
Burn Gorman
The youngest of four children, Burn was born in Hollywood but was brought up in London with his parents and sisters. Burn's father is a Professor of Linguistics at UCLA. In 2006 Burn and his wife Sarah, a teacher welcomed their son Max Hugh Gorman. Their daughter, Nell was born on January 25, 2009. Gorman has worked with the English National Opera...
“ Chett
A man from the Night's Watch ” - Punisher853
 
24.
“ Roslin Frey
Daughter of Lord Walder Frey ” - Punisher853
 
25.
“ Walder ''Black Walder'' Frey
Great-grandson of Lord Walder Frey ” - Punisher853
 
26.
“ Mero aka The Titans Bastard
Commander of the Second Sons ” - Punisher853
 
27.
“ ''Violet'' ” - Punisher853
 
28.
“ Myranda ” - Punisher853
 
29.
“ Wendel Manderly
Bannerman of Robb Stark and son of Lord Wyman Manderly ” - Punisher853