역도요정 김복주
"Do you like Messi?"
Weightlifting Fairy Kim Bok-joo - Easter Eggs & Hidden Details
Easter Eggs
Actor Lee Jong-suk makes a cameo in Episode 2 as a customer at Bok-joo's father's chicken restaurant.
This cameo is a massive crossover with the K-drama "W - Two Worlds Apart" (2016), which starred Lee Jong-suk and was made by the same production company. During his scene, the soundtrack from "W" plays in the background. Bok-joo's uncle (played by Kang Ki-young, who was also in "W") recognizes him, and they have a meta conversation where the uncle says Lee Jong-suk looks like the main character of a cartoon, a direct reference to his character in "W" who is a webtoon character.
Lee Sung-kyung and Yoon Kyun-sang make a cameo appearance as their "Weightlifting Fairy" and "Doctors" characters in the 2017 drama "While You Were Sleeping."
This was a return favor to Lee Jong-suk for his cameo. Lee Sung-kyung appears as Kim Bok-joo, and they are seen on a date, loudly proclaiming their love and affection in a field, perfectly in character with the playful couple from the end of the series. This crossover further cemented the connection between the actors and their respective popular dramas.