Pemeran Because This Is My First Life

Jung So Min (정소민)

as Yun Ji Ho

Pemeran Utama

Lee Min Ki (이민기)

as Nam Se Hui

Pemeran Utama

Esom (이솜)

as Woo Su Ji

Pemeran Utama

Park Byung Eun (박병은)

as Ma Sang Gu

Pemeran Utama

Kim Ga Eun

as Yang Ho Rang

Pemeran Utama

Kim Min Seok (김민석)

as Sim Won Seok

Pemeran Utama

Yoon Bo Mi

as Yun Bo Mi

Pemeran Pembantu

Kim Min Gue (김민규)

as Yeon Bok Nam

Pemeran Pembantu

Hwang Seok Jeong

as Writer Hwang

Pemeran Pembantu

Jang Won Young

as PD Park

Pemeran Pembantu

Kim Wook

as Gye Yong Seok

Pemeran Pembantu

Yoon So Hui

as Yun So Hui [Drama star] (Ep. 1)

Bintang Tamu

Yoon Doo Joon (윤두준)

as Oscar [Drama star] (Ep. 1)

Bintang Tamu

Yang Jae Young

as (Ep. 1)

Bintang Tamu

Choi Dae Sung

as [Yolo Cafe owner] (Ep. 6-8)

Bintang Tamu

Choi Gyo Shik

as [Texi driver] (Ep. 8)

Bintang Tamu

Son Sung Yoon

as [Customized inner wear tailor] (Ep. 12)

Bintang Tamu

Sung Min Jun

as [Kindergartener boy] (Ep. 12)

Bintang Tamu

Kang Sung Wook

as Sin Yeong Hyo

Bintang Tamu

Gam So Hyun

as Yun Ji Ho [9 years old]

Bintang Tamu

Lee Chae Yoon

as Yun Ji Ho [14 years old]

Bintang Tamu

Kim Se In

as Seul Gi

Bintang Tamu

Kim Se Rin

as Seul Gi

Bintang Tamu

Yoon Song Ah

as [Baking teacher]

Bintang Tamu

Lee Chae Kyung

as [Furniture saleswoman]

Bintang Tamu

Choi Na Moo

as [Employee]

Bintang Tamu

Joo Byung Ha

as [Suspect]

Bintang Tamu

Jo Hyun Sook

as [Landlord]

Bintang Tamu

Park Jin Soo

as [Female student]

Bintang Tamu

Park Jin Soo

as [Female student]

Bintang Tamu

Min Jung Sup

Bintang Tamu

Kam Rain

Bintang Tamu

Kang Dong Yup

Bintang Tamu

Yeo Woon Bok

Bintang Tamu

Park Jin U

Bintang Tamu

Kook Joong Woong

Bintang Tamu

Myung Seok Geun

Bintang Tamu

Lee Eun Chae

Bintang Tamu

Kim Wang Geun

Bintang Tamu

Mun Seong Nam

Composer

Park Joon Hwa

Sutradara

Nam Sung Woo

Sutradara

Yoon Nan Joong

Screenwriter