This rookie actor that I'm talking about is Kim Young-dae! Kim Young-dae is born in 1996 and is managed under Outer Korea Entertainment. He is a rising idol, who has started gaining popularity through his web dramas 'Just Bored,' 'You, Countermeasure,' and 'It's Okay Even If You're Sensitive.' He debuted in 2018 is now known as the 'young Kang Dong-won,' thanks to his resemblance to the actor.
Source : DKPopNews