Cast
Choi Ji-suLee Seo YeonChoi Ji-su was 23 in 300 Year Old Class Of 2020 - Season 1 - Episode 5 (Episode 5).
Birthday: Mon, Aug 25 1997
Steve Sanghyun NohJeon Kang WoonSteve Sanghyun Noh was 30 in 300 Year Old Class Of 2020 - Season 1 - Episode 5 (Episode 5).
Birthday: Thu, Jul 19 1990
Han Se-jinKim Shin JaeHan Se-jin was 24 in 300 Year Old Class Of 2020 - Season 1 - Episode 5 (Episode 5).
Birthday: Wed, Apr 03 1996
Go Jae-hyunHeo ChangGo Jae-hyun was 26 in 300 Year Old Class Of 2020 - Season 1 - Episode 5 (Episode 5).
Birthday: Tue, Nov 22 1994