Générique complet
안녕, 형아
Park Ji-bin
Jang Hani
Bae Jong-ok
Mum
Park Won-sang
Dad
SH
Seo Dae-han
Jang Han-byul
최우혁
Wook
Jeon Hye-jin
Hani's teacher
Oh Jee-hye
Wook's mother
이승훈
Wook's father
Son Young-soon
Wook's grandmother
조
조영관
Park Jun-tae
Lee Hang
Doctor
최진호
Doctor Na Young-soo
Park Geun-soo
Resident
YW
Yang Hyeon-woo
Ji Joo-chul
서범식
Tarzan
이
이준희
Hani's Friend 2
정종철
Okdongja
Ahn Sang-tae
Waiter
이동찬
Doctor
