Sim Seok-hun (12 episodes)
Ik-seong
Jeong-hwan
Hwang In-Woo (40 episodes)
Jung-Woo
Ahn Do Young (20 episodes)
Self (cameo)
Kim Jung-wook (51 episodes)
Major Park Dae-suh
Himself (1 episode)
himself (2 episodes)
In-ho Lee (54 episodes)
Oh Seung-won
Lee Soo-hwan (20 episodes)
Yoon Suk-Ki / Alex Yoon (15 episodes)
In-cheol
Yoo Min-hyuk (16 episodes)
Himself (2 episodes)
Park Hee-soo (15 episodes)
Dong-ki
Han Jung-nam
벡터맨 이글 (13 episodes)
