Am I the Butterfly or Is the Butterfly Me?

Shin Hae-sun

Ban Ji-eum

Ahn Bo-hyun

Mun Seo-ha

Ha Yoon-kyung

Yoon Cho-won

Ahn Dong-gu

Ha Do-yun

Ryu Hae-jun

Lee Ji-seok

Kim Si-a

Yoon Ju-won

Choi Jin-ho

Mun Jeong-hun

Park Soi

Ban Ji-eum (young)

Jung Hyeon-jun

Mun Seo-ha (young)

Gi So-you

Yoon Cho-won (young)

Cha Chung-hwa

Kim Ae-gyeong

Kang Myeong-ju

Cho Yu-seon

Moon Dong-hyeok

Ban Dong-u

Lee Hae-yeong

Lee Sang-hyuck

Bae Hae-seon

Jang Yeon-ok

Kim Yu-mi

Cho Yu-seon (young)

Kang Hyun-oh

Yang-sik

Yoon Hwan

Yeon-ok's secretary

Yoo Sang-hyuk

Loan shark

Kim Hyun-woo

Crosswalk boy