(in alphabetical order)
(in credits order)
Rest of cast listed alphabetically
- Lance Bass(as *NSYNC)
- Fiona Bloom(voice)
- Nick Carter(as Backstreet Boys)
- JC Chasez(as *NSYNC)
- Sean 'Diddy' Combs(as Sean 'P. Diddy' Combs)
- Howie Dorough(as Backstreet Boys)
- TJ Espinoza(as T.J. Espinoza)
- Joey Fatone(as *NSYNC)
- Michael Gier(unconfirmed)
- Kirk Hammett(as Metallica)
- James Hetfield(as Metallica)
- Kangta(as H.O.T.)
- Brian Littrell(as Backstreet Boys)
- Darryl McDaniels(as Run DMC)
- A.J. McLean(as Backstreet Boys)
- Jason Newsted(as Metallica)
- Kevin Scott Richardson(as Backstreet Boys)
- Rebecca Romijn(as Rebecca Romijn-Stamos)
- Joseph Simmons(as Run-DMC)
- Steven Tyler(as Aerosmith)
