Choi Seung-hyun (born November 4, 1987), known professionally as T.O.P, is a South Korean rapper, singer, songwriter, and actor. T.O.P made his acting debut in 2007 through the TV series I Am Sam (2007), followed by Iris (2009) and the TV movie Nineteen (2009). He made his film debut with 71: Into the Fire (2010), for which he received praise and won multiple accolades including Best New Actor at the 2010 Blue Dragon Film Awards and the 2011 Baeksang Arts Awards. In 2024, T.O.P portrayed Choi Su-bong, better known as "Thanos", in the second season of the Netflix dystopian survival thriller series Squid Game.