Lee Dong-joon (12 episodes)

Professor Sin

Bong-sam

Tae-geun

Lee Je-hee Foundation Secretary

Lee Taek-yeol (16 episodes)

Um Sun-gu (12 episodes)

Woodsman (2 episodes)

Kwon Ji-woong (14 episodes)

Choi Dong Joon [Ro Hee's great-uncle] (12 episodes)

Yoo Gyo-yeon (21 episodes)

Ji-eun's father (8 episodes)

No Yu Cheol (12 episodes)

Reporter Kang

Designer Lee [Hyun Joo's father] (1 episode)

Choi Young-hwan

Lee Young Goon [Professor] (4 episodes)

Yun Taek Il [Seung Beom and Sun Ho's dad] (5 episodes)

Kang Joo-man (16 episodes)

Oh Sang Gun (1 episode)

Park Hyeong Su [Jing Seong's father] (12 episodes)

Jong Soo [Jin Soo's father] (2 episodes)

Chairman Baek (2 episodes)

Jong Soo (2 episodes)

[Young Geum and Ham Duk's father] (4 episodes)

Joo Man-Yong (32 episodes)

Jin-Soo's father

Hunter

Yoo Nam-soo (32 episodes)

[Hunter] (7 episodes)

Yun Sang-gi (16 episodes)

Fitness Club Owner

'Bells of Passion' Reading Guest 1

Kim Jin Sung [Prime Minister candidate] (4 episodes)

Boss

Prosecutor

Director Koo

[Street writer #3]

Pastor