朴明洙 (Park Myung-soo) is one of the most recognised faces in Korean variety TV. His persona on 무한도전 (Infinite Challenge, 2005-2018) — abrasive, lazy, and self-styled '2인자' (the eternal No. 2 to host Yoo Jae-suk) — made him a household name across East Asia and gave the show a steady comedic engine.