Emperor of the Sea Title card of the series Also known as Sea God or Hae-sin Genre Period drama Based on Hae-sin by Choi In-ho Written by Jung Jin-ok Hwang Joo-ha Directed by Kang Il-soo Kang Byung-taek Starring Choi Soo-jong Chae Shi-ra Song Il-gook Soo Ae Chae Jung-an Composer(s) Park Sangsoo Country of origin South Korea No. of episodes 51 Production Producer(s) Lee Duk Gun KBS Production company(s) Kim Jong-hak Production Distributor KBS Release Original network Korean Broadcasting System Original release November 24, 2004 (2004-11-24) – May 25, 2005 (2005-05-25)