Melisandre is a fictional character.
A character ( sometimes known as a fictional character ) is a person or other being in a narrative work of art ( such as a novel , play , television series , or film ) . Melisandre of Asshai is a fictional character in the A Song of Ice and Fire series of fantasy novels by American author George R. R. Martin , and its television adaptation Game of Thrones . She is a priestess of the god R'hllor and a close advisor to King Stannis Baratheon in his campaign to take the Iron Throne .