there are currently 14 housemates inhabiting inside the bb japan villa.
Erina Rena Korin Hyotaru
Maika Takao Ryosei Hanako
Sarina Satoshi Atsuhiro Yaeko
Tokie Juichi Akinori Emiya
Botan Isoruko Chika Suzue

for even more info on the housemates, visit the wiki.