Robbie Shapiro is a Hollywood Arts student that for a majority of his time at Hollywood Arts carries around a ventriloquist dummy named Rex. He is able to control Rex perfectly, and Rex may even have a mind of its own. Robbie is always regarded as a little strange, but that works to his advantage as it was able to get him closer to Cat. When not consumed by Rex, Robbie is also good at playing the guitar and coming up with his own unique songs. One of his most popular songs is "I Think You're Swell."