Ji Sung

as Park Hae-kang (12 episodes)

as Lee Han-young (14 episodes)

as Jang Jae-gyeong (14 episodes)

as Ha Woo-shin / Song Soo-hyun (16 episodes)

as Kang Yo-han (16 episodes)

as Himself (4 episodes)

as Cha Yo-Han (16 episodes)

as Heung-seon

as Cha Ju-hyeok (16 episodes)

as Park Jung-Woo (18 episodes)

as Shin Suk-Ho (18 episodes)

as Chang Ho

as Cha Do-hyun / Shin Se-gi (20 episodes)

as Self (2 episodes)

as Hyun-tae

as Jo Min-hyuk (16 episodes)

as Hyun-seung

as Mok Ji-sang (35 episodes)

as Cha Ji-heon (18 episodes)

as Han Ji-hoon (18 episodes)

as Kim Su-ro (32 episodes)

as Kim Jung-wo (25 episodes)

as Park Yeong-hwan