As a young boy, Dick Grayson was orphaned by the tragic murder of his parents during a circus performance by Tony Zucco. The young orphan was then taken in by Bruce Wayne, a millionaire business owner, who lived a double life as the infamous crime fighter Batman. Bruce had also witnessed both of his own parents' murder, so the two became very close.
When he grew older, Dick became Batman's sidekick Robin and spent many years helping him rectify the crime-filled streets of Gotham City. One day, Robin decided to strike out on his own and become a solo hero - the defender of Jump City. On one occasion, Robin, along with four other teenage superheroes, worked together to save the city. Because they worked so well together, they formed the Teen Titans, and Robin became the leader of the superhero team.
“Hi, Bart... Someone said you'd never heard of me but that CAN'T be true right? I mean, if you DID say that, it was probably a long time ago... I'm much more famous now! I've got my own team and everything! ”
It was confirmed on the LEGO Dimensions E3 2017 Day 1 stream that if all the Teen Titans Go! characters are on the Toy Pad at once they will have a conversation with each other.
Teen Titans Go! is the only franchise to have more than one character reacting to someone.
Robin's line towards Bane references in the show he looks like one of Starfire's Stuffed Animals.
Robin is the first character to have one of his entrance lines be one of his reaction lines.
When Robin reacts to the Doctor, he says he is relieved that the Teen Titans have never changed their appearances and personalities, which is ironic given towards the fact that Teen Titans Go! is a reboot.