Park Geun-hyung

Chairman Kang of Daejin Group

Kim Joon-seop

Jongryeong

President Park

Lee Man-ho

Jung In-beom, Jung Hee-joo's grandfather who is a victim in a serial murder case.

Choi Gon

Kim Sang-chun, father of Jae-hee and Jae-wook, chairman of family-controlled Cheonji Construction

Oh Man-soo (80 years old), Oh Soo's grandfather.

Shin Tae-jong

Jang Beom-ho

Commissioner General Kwon Sang-ho

Na Dae-gi

Kang Soo-chan

Jin Man-bok

Ma Tae-san Shim Hyung-tak as young Tae-san

Cha Dong-soo

Jung Hyun-soo

Woo Geum-chi, Sang-chul's father-in-law

Lee Dae-gwan

Choi Dong-seong

Chairman of Empire Productions

Kim Ha-yoon (Doo-hyun's and Seung-hyun's father)

Choi In-goo

Oh Young-sook

Company president Seo

President Yoo

Jung Pil-suk

Yoon In-soo

Jo Bae-ho (president of Democratic Party)

Seo Ro-ma, father

Kim Ja-jeom

Yoo Keon-young (the great grandfather)

President Min (Hye-rin's father)

Kim Doo-hyung (Joon-sung's father)

Park Bong-pil

Chairman Kang Woo-taek, Yong-ki's father

Lee Hyun-taek, chief of general surgery

King Hae Buru

Geon-woo's father

Shin Ho-sub

Kim Jung-dae (Young-hoon's father)

Chairman Choi Jae-sub

Seo Moon-soo, Jung-min's father

Eun Jin-sub, Ah-ri-young's father, Kyung-hye's ex-husband

: Taebong

Kim Kap-soo, Hyo-dong's father

Lee Jong-man

Choi Chang-soon

Lee Chul-kyu

Song Jin-woo