Recently at an online community, photos of D.O with his fellow casts during the movie filming went viral.
In the released photos, D.O's extremely short hair brought many people's attention.
D.O went with a semi-bald hairstyle to fully interpret on his new character.
The movie takes place at a prison where North Korean prisoners were kept in during the Korean War.
Filming for 'Swing Kids' just cranked in last August and is expected to premiere in the summer of 2018.
Looking good, D.O!
(Credit= SBS funE, Online Community)