Min Jin-woong

Yook-chil

Lee Jae-hong

Moon Tae-hyun

Woo Chang-soo (32 years old), Yoon-yi's ex-boyfriend.

Byun Joon-young/Lee Joon-young (35) — He is a 9th Grade Civil Servant and Lee Yoon-seok and Na Young-shil's oldest son and 1st child. He has been taking and studying his Civil Servant exam for almost 5 years and he eventually passes the test his 5th year. He has been dating Kim Yoo-joo while studying for his exam but after getting her pregnant by accident, they decide to get married. Initially shown as irresponsible, Joon-young eventually changes and steps up to the plate to become the eldest child of the family during their toughest time. He is also shown to possess great dislike for Joong-hee, as he seems to feel inferior to Joong-hee in every aspect, even though he changes his mind about him later, and starts to become nice and caring to Joong-hee. Oh Jae-moo as young Byun Joon-young

Nam Hae-ryong, one of Baek Jong-shik's hired men. (Eps. 16-20)

Lee Sang-Chul