Pemeran Secret Love Affair

Yoo Ah In (유아인)

as Lee Sun Jae

Pemeran Utama

Kim Hee Ae

as Oh Hye Won

Pemeran Utama

Shim Hye Jin

as Han Sung Suk

Pemeran Pembantu

Kim Chang Wan

as Dean Min Yong Ki

Pemeran Pembantu

Park Hyuk Kwon

as Kang Joon Hyeong

Pemeran Pembantu

Gyeong Su Jin (경수진)

as Park Da Mi

Pemeran Pembantu

Kim Hye Eun

as Seo Young Woo

Pemeran Pembantu

Kim Yong Gun

as Seo Pil Won

Pemeran Pembantu

Shin Ji Ho

as Ji Min Woo

Pemeran Pembantu

Jang Hyun Sung

as Kim In Kyum

Pemeran Pembantu

Yang Min Young

as Kim In Joo

Pemeran Pembantu

Jin Bo Ra

as Jung Yoo Ra

Pemeran Pembantu

Park Jong Hoon

as Jo In Seo

Pemeran Pembantu

Choi Tae Hwan

as Son Jang Ho

Pemeran Pembantu

Yoon Bok In

as Yoon Ji Soo

Pemeran Pembantu

Jang So Yeon

as Se Jin

Pemeran Pembantu

Heo Jung Do

as Im Jong Su [Jun Hyeong's teaching assistant]

Pemeran Pembantu

Kim Kwon

as Woo Sung [Seo Yeong Woo's young lover]

Pemeran Pembantu

Kim Shin Jae

as Jang Shi Eun

Pemeran Pembantu

Baek Ji Won

as Secretary Wang Jung Hee

Pemeran Pembantu

Kil Hae Yeon

as Teacher Baek

Pemeran Pembantu

Lee Moo Saeng

as Chief Lim

Pemeran Pembantu

Kim Shi Young

as Director Cha

Pemeran Pembantu

Son Jong Hak

as [Chief of staff]

Pemeran Pembantu

Kim Jung Young

as [Editor-in-chief]

Pemeran Pembantu

Jang Jun Hee

as [Performance section chief]

Pemeran Pembantu

Lee Kan Hee

as Myeong Hwa

Bintang Tamu

Jo Young Hoon

as [Young man]

Bintang Tamu

Henny Savenije

as [Artisan tailor]

Bintang Tamu

Seo Jung Yeon

as [Restaurant employee]

Bintang Tamu

Lee Nam Yeon

Composer

Ahn Pan Seok

Sutradara

Jung Sung Joo

Screenwriter