Consider the question. Cho Tae-gwan as Daniel Spencer (Peacemaker Emergency Doctor Team) Jeon Soo-jin as Ri Ye-hwa (Peacemaker Emergency Nurse Team) David Lee McInnis as David Argus (Gang Boss, former Delta Force Captain), the main antagonist. Dean Dawson as the Chief of Police (Tae Baek Police Chief) Jo Jae-yoon as Jin Young-soo (Chief Manager of Uruk Electric Power Corporation) Lee Yi-kyung as Kang Min-jae Zyon Barreto as Fatima Elena Zhernovaia as Valentine David Pipes as Martin (World Times Reporter) Ji Seung-hyun as Senior Lieutenant Ahn Jung-joon, Korean People's Army. Kwak In-joon as Lee Han-soo (Minister of Foreign Affairs) Joey Albright as US Army Delta Force member

Who plays daniel in descendants of the sun?
 If the answer is 'Cho Tae - gwan'; explain the reasoning:
The relevant sentence in the passage is: Cho Tae-gwan as Daniel Spencer (Peacemaker Emergency Doctor Team)