Lee Dal

(12 episodes) as Hoi

as Pil-yong

(4 episodes) as Security Chief Guard Jang

(20 episodes) as Jun Soo-nam

(24 episodes) as Kim Jae-Hwan

(2 episodes) as Yoo Kyung-tae

(40 episodes) as Min Yeong Hun

(16 episodes) as Geon-su

as Boy