Lee Yun-sang

as Physician

as Mayor of Cheongju

as Doctor

as Hospital director

as Mr. Yang

as Doshin Group Board Member

as Judge

as [Shareholder meeting moderator] (Ep. 7)

as Judge

as Han Sang-tae

as Yoon Sang-ki

as Kwon Byung-Wook

as Father in drama series

as Doctor

as Jang Dong Gyu [President, Institute for Defense Analysis]

as Chief director

as Judge

as [funeral attendee]

as Yoon-wan's Associate