Dong-hyun is a high school student. One day, he falls from the rooftop and bumps into Pan-soo who is a passerby. Pan-soo is a member of a criminal organization. When the two men wake up in the hospital, they discover that they have switched bodies.
Kim Dong-hyun
Jang Pan-soo
Oh Mi-sun
Oh Hyun-jung
Min-woo
Kim Jong-ki
Man-chul
Dam-im
Jae-hee
Japanese Teacher
Kim Jae-ik
History Teacher
Hotel Staff
Detective
Cheol-ho
Loan Shark
CEO Han
Coffee Employee
Min-woo's Friend
Min-woo's Friend
Min-woo's Friend
Min-woo's Friend
Min-woo's Friend
Min-woo's Friend
Min-woo's Friend
Yoon-ji
Chul-ho
Section Chief Jo
Loan Shark Big Man
Detective
Hospital Ward Guard 1
Hospital Ward Guard 2
Mansion Security Guard
Reporter
Section Chief Kwak
Landlord
Housekeeper
Woodworking Employee
Police
Loan Shark Accountant
Grandmother
Attending Physician
Pianist
Party Girl
Cart Bar Man
Bar Owner
Pan-soo's Gang Member 1
Pan-soo's Gang Member 2
Pan-soo's Gang Member 3
Pan-soo's Gang Member 4
Nurse
Gun Carrying Man
Security Personnel
Min Woo-chin
Moneylender's Big Guy
Wrecking Crew
Shared Meal Restaurant Couple Man
Imaginary Mi-seon
CEO Yang's Subordinate
Fat Man
Female Student
Wrecking Crew
Literature Teacher
Bully 1
Bully 2
Kim Dong-hyun's Classmate
Han Seo-yeon
Math Teacher
CGI Director
Costume Design
Executive Producer
Digital Intermediate
Writer
VFX Supervisor
Director
Sound Supervisor
Writer
Producer
Editor
Director of Photography
Production Design
Writer
Fight Choreographer
Theme Song Performance