In the prison break sequences, the number on Kari Byron's prison uniform is 5150, a van Halen reference. Among other things, it is the title of the group's seventh studio album, named after Eddie Van Halen's home studio, 5150, which was in turn named after a California law enforcement term for a mentally disturbed person. Grant Imahara's number is 3.14, the first decimals of the number pi, a reference to his resident geek status. Tory Belici is wearing a triple zero as a nod to his "dunce" persona on the show.