apts bae suzy, han hyo joo, jin se yeong, park hae jin, nam joo hyuk, seo kang joon, lee hyuk soo, yoon bora, kang sora, and more k-drama faces all around, gangnam severance hospital employees/coworkers, other medical professionals, patients, yonsei university graduates, anyone he might have served in the military with, childhood and family friends, babysitters, lines with everyone