Shin Jung-keun

as Kentucky Hope

as Eun-ho's Father

as Koo Hyeong-tae (12 episodes)

as Song In-soo (12 episodes)

as Right Paw

as Choi Jin-soo (12 episodes)

as Lim Chi-hwa

as Right Paw

as Self (4 episodes)

as Jang Gi-seok

as Kim Sun-bi (16 episodes)

as Chief Oh

as Kim Jang-su (16 episodes)

as Sun-Sik

as Servant (24 episodes)

as Self (1 episode)

as Yong Hak-Soo (16 episodes)

as Jo Duk-pal

as Elder Hwang

as Captain Kang

as Oh Jeonggeun (16 episodes)

as Han Dal-sik

as Dean of Students (16 episodes)

as Choe Dal-pyeong (20 episodes)

as Yong-gap