The following is a list of notable characters belonging to the major aristocratic houses of fictional Westeros in George R. R. Martin's A Song of Ice and Fire series of epic fantasy novels. Female characters who married into another house are listed with their ancestral house. Other notable characters in the series are listed in Characters in A Song of Ice and Fire, and a comprehensive list of characters can be found at List of characters in A Song of Ice and Fire.

Principal noble house in the Vale. Their main seat is The Eyrie. Their sigil is a white moon-and-falcon on a sky-blue field, and their words are "As High as Honor". The family's lineage dates back to the Andals that invaded Westeros.

Jon Arryn was Warden of the East and Hand of the King during Robert Baratheon's reign. He was one of the principal leaders of Robert's Rebellion, raising his banners to protect his wards Robert and Eddard Stark. To secure the support of Lord Hoster Tully in the rebellion, Jon married Lysa Tully. As Robert's Hand of the King, Jon was left with much of the responsibility of running the Seven Kingdoms. He was a close friend and father figure to both King Robert and Lord Eddard through most of their lives.

Indira Varma (born 14 May 1973 in Bath, Somerset) is an English actress. Her first major role was in Kama Sutra: A Tale of Love. She has gone on to appear in the television series Rome, Luther and Human Target.

Varma is the only child of an Indian father and a Swiss mother who was part Genoese Italian. She was a member of Musical Youth Theatre Company. She graduated from the Royal Academy of Dramatic Art (RADA) in London in 1995.

Varma has had a number of television and film roles, including Kama Sutra: A Tale of Love in 1997 and Bride and Prejudice in 2004, and the young Roman wife Niobe during the first season of BBC/HBO's historical drama series Rome. Her character appeared briefly in the second season of the award-winning series when it aired on Sunday, 14 January 2007.

In 2006, she played Suzie Costello in the first and eighth episodes, "Everything Changes" and "They Keep Killing Suzie", of BBC Three's science-fiction drama series Torchwood. She appeared as Dr. Adrienne Holland in the CBS medical drama 3 lbs which premiered on 14 November 2006 and was cancelled on 30 November 2006 due to poor ratings. Varma guest starred in the fourth season premier of hit US detective drama Bones as Scotland Yard Inspector Cate Pritchard. She also played the role of Zoe Luther in the six part BBC drama Luther.