Cast of Friendly Rivalry

Main cast

Lee Hye-rias Yoo Je-yi

Chung Su-binas Woo Seul-gi

Kang Hye-wonas Joo Ye-ri

Oh Woo-rias Choi Gyeong

Kim Tae-hunas Yoo Tae-joon

Chae Seo-eunas Jo Ah-ra

Choi Young-jaeas Nam Byeong-jin

Kim Sang-jias Beom-soo

Lee Won-jaeas Woo Do-hyeok

Yoo Jung-Raeas Homeroom Teacher

Kang Jin-ahas Kwon Hee-yoon

Ma Hyun-jias Park Byeong-hui

Choo Ye-jinas Yoo Je-na

Ha Mheenas Principal

Lee Na-raas Joo Ye-ri Mother's

서은오as Kim Shan-young