Actor Byeon Woo-seok appeared in a preview video at the end of episode 323 of MBC variety show 'Hangout with Yoo?'

In this episode, the 'Comma, Club' members gathered again to welcome the full arrival of spring. Jung Joon-ha attended as 'Gangbyeon' (Gangnam Station Byeon Woo-seok), and Joo Woo-jae introduced a friend who wanted to join the meeting, saying, "That friend's ID is also 'Byeon Woo-seok'." He then suggested, "Let's see who the real one is today."

When the real Byeon Woo-seok appeared, Jung Joon-ha showed a flustered reaction. Byeon Woo-seok warned Jung Joon-ha, saying, "You've been impersonating me." Heo Kyung-hwan led the atmosphere by saying, "You don't look alike at all," and added, "The fake has to leave."