The Robin from the other dimension who is named Larry by the Titans give his real name as Nosyarg Kcid which is Dick Grayson spelled backwards. Dick Grayson is Robin's real name. This is another subtle message from the creative team to fans to tell them that this Robin's identity is Dick Grayson.
The theme song in the opening sequence is sung in Japanese by Larry the Titan and features Larry in the sequence; It was actually sung by Puffy Ami Yumi's manager. It's called the "Toshi Mix." Toshi is credited in Fractured as Toy C.
The idea for this episode actually started as far back as Season 1. Producer Sam Register suggested the creative team do an episode where everything just goes crazy. Meanwhile, all the guys on the crew started drawing a little reject Titan that they called "Larry the Titan." There were all these different designs for him and he never looked the same way twice. But they would draw all these pictures of Larry." Somewhere during the process, they were thinking of doing a Bat-Mite type character. And someone said, "Why not make it Larry?" So the crew started to develop this anti-Robin, but they didn't want to do Mr. Mxyzptlk. They wanted him to be a more earnest trouble-maker. That he really didn't mean to make trouble. So it became an episode about making mistakes. So that made it a natural for Robin, who almost never makes mistakes.
The character Jonny Rancid has a name that is similar to Jonny Rotten a.k.a. John Lydon of the Sex Pistols. His voice is provided by Henry Rollins, lead singer of the rock group, Black Flag.