Victoria "Tori" Vega is the protagonist of the Nickelodeon hit show, Victorious. She experiences the biggest change of her life during the Big Showcase when she transfers from Sherwood High School to Hollywood Arts. Trina Vega is Tori's obnoxious older sister and a diva-in-training on Victorious. Trina's not satisfied unless she's in the spotlight. Robert "Robbie" Shapiro is a ventriloquist who almost always carries his best friend Rex around everywhere. Rex can speak on his own. 