The confirmed cast is: Kim Sook, Hong Jinkyung, Kang Yewon, Han Chaeyoung, Hong Jinyoung, Minzy, Somi
[Somi is the last member confirmed]
[INFO] Somi has been confirmed as a cast member of KBS2 'Sister's Slam Dunk 2'.— fy JYP Nation (@fyjypnation) January 16, 2017
[정보] KBS2 '언니들의 슬램덩크 2'에 전소미양이 합류합니다. pic.twitter.com/XUkqMNf52d
Source: tenasia, fyjypnation (2)
Omona, are you excited for the new cast? Are you young enough to be Somi your unnie?