Full cast of The One and Only

Ahn Eun-jin

Pyo In-sook

16 episodes

Kim Kyung-nam

Min Woo-cheon

16 episodes

Moon Seong-hyun

Min Woo-Cheon (teen)

16 episodes

Kang Ye-won

Kang Se-yeon

16 episodes

JOY

Sung Mi-do

16 episodes

Goh Doo-shim

Yook Sung-ja

16 episodes

Jang Hyun-sung

Pyo Gang-Sun

16 episodes

Seo Yeon-woo

Ha San-A

16 episodes

Ahn Chang-hwan

Shin Tae-il

16 episodes

Choi Young-woo

Park Seung Seon

16 episodes

Han Kyun-yu

Gu Ji-pyo

16 episodes

Do Sang-woo

Cho Shi-young

16 episodes

Lee Bong-ryeon

Hwang Ma-Jin

16 episodes

Jang In-sub

Oh Jin-kyu

16 episodes