He rose to fame after appearing in the hit drama Queen of Housewives (also known as My Wife is a Superwoman, 2009).

[1] Other notable roles include King Seonjo in The Immortal Lee Soon-shin (2004), Geolsa Biu in Dae Jo-yeong (2006) and King Gyeongjong in Empress Cheonchu (also known as The Iron Empress, 2009).

He married Kim Hye-sook on 7 August 2005.

Kim was the Chungnam representative at the 2004 Miss Korea pageant.

[3] Choi was investigated for drunkenly assaulting an aspiring actress on 8 July 2010, with the incident caught on CCTV.