Captain Yoo Si Jin (19 episodes, 2016)
Dr. Kang Mo Yeon (19 episodes, 2016)
Master Sergeant Seo Dae Yeong (19 episodes, 2016)
First Lt. Yoon Myeong Joo (19 episodes, 2016)
Kim Ki Beom (17 episodes, 2016)
Lieutenant General Yoon (17 episodes, 2016)
First Sergeant Lim (Piccolo) (16 episodes, 2016)
Nurse Ha Ja Ae (16 episodes, 2016)
Nurse Choi Min Ji (16 episodes, 2016)
First Sergeant Choi (Snoopy) (16 episodes, 2016)
Staff Sergeant Gong (Harry Potter) (16 episodes, 2016)
Dr. Song Sang Hyeon (15 episodes, 2016)
Lt. Colonel Park Byung Soo (15 episodes, 2016)
Lee Chi Hoon (15 episodes, 2016)
Pyo Ji Soo (14 episodes, 2016)
Daniel Spencer (12 episodes, 2016)
Captain Argus (8 episodes, 2016)
Jin Young Soo (8 episodes, 2016)
Ri Ye Hwa (6 episodes, 2016)
Henchmen (6 episodes, 2016)
Han Suk Won (5 episodes, 2016)
Kang Min Jae (4 episodes, 2016)
Lt. Ahn Jung Joon (4 episodes, 2016)
Captain Kim Jin Seok (4 episodes, 2016)
U.S. Army Delta Force Captain Jordan (3 episodes, 2016)
Indian Worker (2 episodes, 2016)
Fatimah (2 episodes, 2016)
Mr. Go (2 episodes, 2016)
Assassin (2 episodes, 2016)
Bank Clerk (1 episode, 2016)
Toy Shop Worker (1 episode, 2016)
Chief of Police (1 episode, 2016)
Dr. Kim Eun Ji (1 episode, 2016)
Dae Young's ex-girlfriend (1 episode, 2016)
U.S. Army Doctor (1 episode, 2016)
Dr. Jang Hee Eun (1 episode, 2016)
Themselves (1 episode, 2016)
Dae-yong's former soldier (1 episode, 2016)
VIP patient (1 episode, 2016)
US Delta Force Member (1 episode, 2016)
Lieutenant Park's team (1 episode, 2016)