Barney was also regularly joined by various dinosaur co-stars. There was Baby Bop, a green three-year-old Triceratops famous for her security blanket; her older brother B.J., a yellow Protoceratops who loved pickles; and Riff, a six-year-old orange hadrosaur with a passion for music and inventing things. Various puppets also guested on the show, including Scooter McNutty and Booker T. Bookworm.
Barney and Friends also welcomed more than 100 children to its school setting, several of whom went on to forge enduring showbiz careers. Pop stars Demi Lovato and Selena Gomez are its two most famous cast members. But the show also gave several actresses their start, including Danielle Vega, Debby Ryan and Madison Pettis.
But, of course, the most important cast member was the man who played Barney the Dinosaur himself. For the first nine years of the show, that role went to David Joyner. The Illinois actor first took over from David Voss during Barney’s early home video phase and continued to wear the costume when the dinosaur made the move to PBS.