Jung Jun-ho

as Cheon Deok-gyu

as Dad

as Lee Jong-beom

as Choi Gum (16 episodes)

as Lee Joo-hun (16 episodes)

as Cheon Deok-gyu

as Self (4 episodes)

as King Gwang-hae (32 episodes)

as Kang Joon-sang (20 episodes)

as Self (1 episode)

as Self (1 episode)

as Seo Jin-chul

as Yoon Won-Hyung (51 episodes)

as Yoon Tae-soo (16 episodes)

as Moon Tae-joo (24 episodes)

as Min Sang-shik (22 episodes)

as Park Dae-suh