Song Jong-ho appears in "Doctor Frost" for the first time

 Song Jong-hoappeared in"Doctor Frost"as Moon Seong-hyeon on the seventh episode.

Moon Seong-hyeon is a character who young Doctor Frost met in the library after losing his memory and is going to add energy to the drama.

When Moon Seong-hyeon appeared, Song-seon (Lee Yoon-ji) said, "Baek would be so pleased to hear that you're back". Moon Seong-hyeon said, "I missed you all".

Meanwhile,"Doctor Frost"is based on a popular web-toon about a genius psychologist helping to solve crime with the investigative team. The drama starsSong Chang-ee,Jeong Eun-chae,Seong Ji-roo,Lee Yoon-ji,Choi Jeong-wooand more.