Ser Lancel Lannister, later known as Brother Lancel, is a character from A Song of Ice and Fire and an antagonist in the King's Landing storyline in Seasons 5 and 6.
He was portrayed by Eugene Simon
Lancel Lannister was the eldest son of Ser Kevan Lannister. He served as a squire to Robert Baratheon before making him drunk during a hunt which ultimately led to his death. Afterwards, he was knighted by Cersei Lannister before being severely injured after the Battle of Blackwater. After his recovery, Lancel embraced the Faith Militant movement and stripped himself of his family name.