- Yoo Jae-suk (Main Host)
- Jee Seok-jin (Self)
- Kim Jong-kook (Self)
- Haha (Self)
- Song Ji-hyo (Self)
- Yang Se-chan (Self)
- Ji Ye-eun (Self)
- Kang Gary (Self)
- Lee Kwang-soo (Self)
- Jeon So-min (Self)
Running Man — S1E41
Episode: Park Joong-hoon vs Lee Sun-gyun
Air Date: 2011-05-01
Runtime: 86 min
Overview
Landmark: National Digital Library of Korea, Seoul Guests: Lee Sun-gyun, Park Joong-hoon