Oh Young-soo (오영수) is a South Korean actor born on October 19, 1944 as O Se-kang (오세강). In 2021, he portrayed Oh Il-nam in the Netflix survival drama Squid Game, which gave rise to his worldwide popularity and won him a Golden Globe Award for Best Supporting Actor in a Series, Miniseries or Television Film, as well as a nomination for the Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series.