 The 2012 comedy film "Runway Cop" reunited him with previous costar Sung Yu-ri (from "Hong Gil-dong") and director Shin Tae-ra (from "My Girlfriend Is an Agent").During filming, Kang gained 12 kilograms and shed 15 kilograms two weeks later for his role as an overweight and messy detective who goes undercover as a fashion runway model to solve a case.Following that, he and Lee Ki-woo appeared in a 25-minute "music video drama" to promote Kim Hyung-jun's EP "Escape".