Jang Young-nam

Ma Jin-sook: Tae-baek's wife and Baek-doo's mother.

Jang Seo-jin

Yeomra

Seo Gye-suk: Myung-hoon's biological mother. Due to debt, she asked her friend to adopt her son.

Seong Chun-yang, Do Hae-yi's mother.

Do Jin-sook

Cha Kyung-hee, the Minister of Justice, an ambitious former elite prosecutor, whose goal is to become the President of South Korea.

Jeong So-yeon

Park Haeng-ja

Choi Hee-sang, director of the news reporting bureau who is married to Cheol-woong.

The Queen Dowager

Seo Seol, owner of Ihwaru

Tak So-jung

Kim Ok-hee

Princess Wonseong (Qutlugh Kelmysh Beki), Kublai Khan's daughter; Chungnyeol's wife & Wang Won's mother Kim Bo-ra as young Princess Wonseong

Lady Heo, Gyeon Woo's mother

Kang Il-Ran, Il-Joo's elder sister

Choi Hye-jin, mother of Yoo-ra, plastic surgeon and friend of Hee-ra

..... Nam Kyung-hee

Lee Mi-ryun

Pickpocket mom (ep. 2, 6)

Ha-myung's mother

Jang Young-soon

Kwon Eun-hee

Ma Jin-hee

Noblewoman Jo (guest appearance, ep 7–8)

A-ri

Oh Mi-ja

Yeo Eun-joo

Oh Seung-hye

Wang Joong-ki (electoral specialist)

Jin Do-hee

Oh Jung (Young-min's colleague)

Kim Eun-bi, TV show writer

Sung-sook, Hye-jin's friend

Noh Hee-sook

Ki-joong's ex-wife