1) Cersei Lannister

Lena Headey's Cersei Lannister is one of the shrewdest characters in Game of Thrones. She is determined to protect her family and secure power, no matter the cost. In season 7, Cersei, with her cunning nature, secures Euron Grejoy's loyalty and fleet by promising him marriage, knowing that his naval power is crucial for her control over the Seven Kingdoms. This alliance helps her strengthen her military position and intimidate her enemies.
Edited by Sugnik Mondal