Mr. Jang

Mr. Jang is the main antagonist of the 2014 action sci-fi film Lucy. He is a Korean mob boss and drug lord who killed Lucy's boyfriend and put the CPH4 onto her abdomen which soon led her to be given with superhuman powers and the 100% full capacity of the human brain.

He is portrayed by Choi Min-shik who played Jang Kyung-chul in I Saw the Devil.