Pemeran tvN O'PENing: The Nerd's Daughter

Kim Jung Young

as O Jae Geum

Pemeran Utama

Ha Young (하영)

as Shin Seo Hyun

Pemeran Utama

Lee Sang Woon

as Park Yeong Jin

Pemeran Pembantu

Bae Hae Seon

as Lee Mi Suk

Pemeran Pembantu

Lee Ji Ha

as Kwon Hye Ran

Pemeran Pembantu

Ahn Nae Sang

as Park Jang Won

Pemeran Pembantu

Lee Yi Kyung (이이경)

as Lee Yi Kyung

Pemeran Pembantu

Lee Myung Hee

as [Fan club member]

Bintang Tamu

Kim Na Kyung

Sutradara