Kim Hae-sook

Mrs. Nawol

Kim So-yeon's mother

Na Byung-hee

Gil Joong-gan

The Jade Emperor

Queen Dowager

Yong Sook (Director Yong), the director of a foundation.

Jung Ro-sa, Jeong-won's mother.

Choi Won-deok

Park Seon-ja

Sin Hyeon-sook, wife of Tae Byeong-cheo

Jang Hwa-sa, a death-row convict who is the infamous killer behind a poison murder case.

Yoo Myung-hee, a professor in law school. She inspired Lee Jung-joo to become a judge.

Kim Jung-hee, Seo Ji-yoon's mother-in-law

Na Young-sil (58) — Lee Yoon-seok's wife and the matriarch of the family. She helps Yoon-seok with the snack bar while raising her four children. She first met her husband at a hospital while she was working as a nurse. She was also the only one who believed his innocence and stood by him after he was released from jail. After learning that she was pregnant with Joon-young, she begged Yoon-seok to maintain his new identity as Byun Han-su for the sake of their child and his future. She is known to be very protective of her family and goes to great lengths to ensure that their children never learned of their father's true identity. She also does the driving for her husband since due to his switched identity, he could not obtain a driver's licence.

Park Hwa-soon (cameo)

Oh Mal-soo

Park Rosa

Shin Bong-hyang, Gi-tae's mother

Baek Mi-nyeo

Housekeeping Agency director Hong

Eo Choon-shim, Hye-sung's mother

Lee Ji-ae

Kang Soo-jung, Ji-hyung's mother

Kim Min-jae

Wang Young-soon

Na Hye-joo (Seon-woo's mother)

Shin Jung-wook, or Madam Shin (Hyung-woo and Shin-woo's mother)

Lee Soon-seom, Dal-rae's mother-in-law

Ahn Yang-soon

Yang Eun-ja, Dal-hee's mother

Oh Dong-ji

Jo Yang-soon, Eun-young's aunt and adoptive mother

Soon-yi's birth mother

Kim Ok-hwa

Park Ok-ja, Soon-young's mother

Jung-sook's mother

Min-woo's mother

Oh Young-seok

Lee Yeong-hee, Yoo-jin's mother

Min-kyung's aunt

Kim Soon-im (Eun-suh's mother)

Jae-ho's mother

Queen Jeongan