He'll be making a cameo on the 18th episode, which is set to air today, the 19th, at 9:55 KST. He will make his entrance as Han Kyung, the older brother of Lee Jae Kyung (Shin Sung Rok) and Lee Hwi Kyung (Park Hae Jin).
Yeon Woo Jin shared, "As a fan of 'You Who Came from the Stars', I am happy to make a cameo... Director Jang Tae Yoo and writer Park Ji Eun's production normally leave a deep impression on me. Although it's only a cameo, it is an honor to feature in their production."
He's also starring in the upcoming horror film 'Tunnel 3D', which will wrap up filming in April and premiere this summer.
See if you can spot Yeon Woo Jin's cameo!