Kyung Soo-jin as Song Shi-ho
Kim Bok-joo’s roommate and Jung Joon-hyung’s ex-girlfriend. A top-class rhythmic gymnast, who won a silver medal at the Asian Games at the age of eighteen. She is an overachiever, and is under constant stress about her developing figure, which causes her to break up with Joon-hyung.
Lee Jae-yoon as Jung Jae-yi
Jung Joon-hyung’s older brother. A former athlete who becomes an obesity doctor due to an injury. His gentle and kind personality makes him the first man that Bok-joo falls in love with.
Lee Joo-young as Lee Seon-ok
She is direct, loves to eat and does not show much affection but is loyal to her friends. Getting to “demonstrate” some potential interest in Jo Tae-Kwon.
Cho Hye-jung as Jung Nan-hee
Despite her strength, she is a very feminine girl and dreams of romance, always willing to spread happiness around her.
Oh Eui-sik as Bang Woon-ki, Team Captain
Choi Moo-sung as Yoon Deok-man, Professor or Coach
Jang Young-nam as Choi Sung-eun, Coach
Ji Il-joo as Jo Tae-kwon
He is very friendly and even half “silly.” With the passing of time, he begins to show some interest in Lee Seon-Ok.
Kim Jae-hyun as Kim Jae-hyun
Kim Woo-hyuk as Kim Woo-hyuk
He is Jung Joon-hyung’s junior. He has a habit of dating women, then ghosting them, and thus is hated by all his female peers.
Choi Woong as Kim Gi-seok
He is Jung Joon-hyung’s senior. He has a crush on Song Shi-ho.
Rhythmic Gymnastics Team
Cho Soo-hyang as Soo-bin
She is a rising star collegiate rhythmic gymnast who competes with Song Shi-ho.
Ray Yang as Sung Yoo-hwi, Coach
People Around Kim Bok-joo
Ahn Gil-kang as Kim Chang-gul
He is Kim Bok-joo’s father, a former weightlifter who owns a fried chicken restaurant.
Kang Ki-young as Kim Dae-ho
He is Kim Bok-joo’s uncle, a part-time aspiring actor who works at the restaurant.
People Around Jung Joon-hyung
Jung In-gi as Jung Joon-hyung’s maternal uncle and foster father
Lee Jung-eun as Jung Joon-hyung’s maternal aunt and foster mother
K-Drama Weightlifting Fairy Kim Bok-joo Soundtrack
- You & I – Kim Jong-wan (김종완) of NELL
- From Now On – Kim Min-seung (김민승)
- Han Hee-jung – Dreaming
Somehow (왠지 요즘) – J.Mee (Lush)
- I’ll Pick You Up – Standing Egg
- Permeate – Lee Hae-in (이해인)
- Again Again Again – Lee Jin-ah (이진아)
- Is It Love? – Ahn Hyun-jung