character - Sim Seok-hun

character - Ik-seong

character - Jeong-hwan

character - Hwang In-Woo

character - Jung-Woo

character - Ahn Do Young

character - Self (cameo)

character - Kim Jung-wook

character - Major Park Dae-suh

character - Himself

character - Self

character - In-ho Lee

character - himself

character - Oh Seung-won

character - Lee Soo-hwan

character - 김건우

character - Jon

character - Yoon Suk-Ki / Alex Yoon

character - In-cheol

character - Yoo Min Hyuk

character - Park Hee-soo

character - Himself

character - Dong-ki

character - 벡터맨 이글