Jaime Lannister is a character in the Game of Thrones book.
A Game of Thrones is the first novel in A Song of Ice and Fire , a series of fantasy novels by American author George R. R. Martin . Jaime Lannister 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 . Introduced in A Game of Thrones ( 1996 ) , Jaime is a knight of the Kingsguard and a member of House Lannister , one of the wealthiest and most powerful families in the fictional kingdom of Westeros . Jaime is portrayed by Nikolaj Coster-Waldau on the HBO series Game of Thrones .