Question: who is bj from barney?
Answer: She is the younger sister of B.J. The person in the suit for Baby Bop was male. B.J. (voiced by Patty Wirtz): A seven-year-old yellow Protoceratops, B.J. has been on the show since September 27, 1993. He is the older brother of Baby Bop, whom he frequently calls "Sissy" and occasionally calls by her name.