There are several ways to say "they" in Japanese. 彼ら（かれら） is used to refer a group of only males or mixed gender.　彼女ら（かのじょら） is used to refer a group of females. この/その/あの人たち is used to refer both gender and 人々（ひとびと） is used to refer to general people.

They is Kaera or 彼ら