- Park You-na - Yoo-eun
- Chung Hye-lyn - Lee Ji-hyo
- Kim Doh-yon - Jang Won-ho
- Oh Hee-jun - Kim Chan-woo
- Bae Da-bin - Kwon Yoon-byeol
- Baek Soo-min - Go Ye-na
- ??? - Song Jeong-ho
- ??? - Mi-na
- Shin Jun-seop - Young Do Gyeong-seok
- Park Seong-geun - Do Sang-won
- Kim Sun-hoa - Na Eun-shin
- Jung Seung-hye - Choi Jeong-boon
- Kim Eun-soo - Kim Seong-woon
- Ham Seong-min - Jeong Dong-won
- Lee Ye-rim - Kim Tae-hee
- Kim Yi-rin - Jo Jeong-hyeop
- Ryoo Ki-san - Goo Tae-young
- Jung Myung-hoon - Young-mo
- Ji Sang-hyuk - Lee Sooh-yeon
- Han Hae-rim - Yoon Soo-gyeong
- ??? - Herself
- Park Min-ji - Ah Reum [Yoo Jin's girlfriend]
- Cha Bo-sung - Ye Joon [Freshman]
- ??? - [Freshman]
- Lee Chae-kyung - Kelen's team leader
- ??? - Priest / Yoo Jin's father
- Kim Jin-sung - Kim Se Hoon
- ??? - [Kelen's model]
- Hah Kyoung - Park Yong-Chul
- Ok Joo-ri - Realtor
- ??? - Server in Cafe
- In Seong-ho - Man in cinema
- Choi Seong-beom
- Choi Soo-young
??? hace el papel de Kang Mi-rae.
Cha Eun-woo interpreta a Do Kyung-seok en la serie.
Jo Woo-ri interpreta a Hyun Soo-a en la serie.
Kwak Dong-yeon hace el papel de Yeon Woo-young.
??? hace el papel de Na Hye-sung.
Kim Ji-min interpreta a Do Kyung-hee en la serie.
Lee Tae-seon interpreta a Woo-Jin en la serie.
Woo Hyeon interpreta a Kang Tae-sik en la serie.
Min Do-hee interpreta a Oh Hyun-Jung en la serie.
Park You-na hace el papel de Yoo-eun.
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