Seong Gi-hun, also known as Player 456, is the main protagonist of the South Korean dystopian survival thriller television series Squid Game, made for Netflix. He was created by series creator Hwang Dong-hyuk and portrayed by Lee Jung-jae, who was cast out of a desire to affect his reputation as a cool actor and show the humanity behind his role. Gi-hun takes multiple aspects from Hwang's life, including his neighborhood, his childhood friend's name, aspects of his uncle, and his own struggles with gambling and failure. When designing his character for season 2, Hwang aimed to make him a Don Quixote–like character, revolting recklessly against the system. Lee found him to be the most "heartbreaking" character he has portrayed. He is voiced in the English dub by Greg Chun.