 | Diego Boneta | ... | Drew Boley |
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 | Julianne Hough | ... | Sherrie Christian |
 | Tom Cruise | ... | Stacee Jaxx |
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 | Alec Baldwin | ... | Dennis Dupree |
 | Russell Brand | ... | Lonny |
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 | Mary J. Blige | ... | Justice Charlier |
 | Erica Frene | ... | Beth |
 | Bryan Cranston | ... | Mike Whitmore |
 | Michael Olusczak | ... | Crook |
| Anthony Bellissimo | ... | Rocker Thief |
 | Barry Habib | ... | Record Executive |
 | Shane Hartline | ... | Bartender Jimmy (as Alan Shane Hartline) |
 | James Martin Kelly | ... | Doug Flintlock |
 | Catherine Zeta-Jones | ... | Patricia Whitmore |
 | Celina Beach | ... | Mayor's Secretary |
 | Angelo Valderrama | ... | Chico (as Angelo Donato Valderrama) |
 | Paul Giamatti | ... | Paul Gill |
 | Dan Finnerty | ... | Tour Manager - Stacee |
 | Kevin Nash | ... | Stacee's Bodyguard |
 | Jeff Chase | ... | Stacee's Bodyguard |
| Chantel Gonsalves | ... | Stacee Groupie |
 | Tyne Stecklein | ... | Stacee Groupie |
| Hanna Lee Sakakibara | ... | Stacee Groupie |
| Jaimie Goodwin | ... | Stacee Groupie |
 | Anne Fletcher | ... | Church Horse Mother |
| |
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 | Malin Akerman | ... | Constance Sack |
| David Gibbs | ... | Arsenal Band |
 | Mark Dzier | ... | Arsenal Band |
 | Brev Sullivan | ... | Arsenal Band |
| Daniel Wills | ... | Arsenal Band |
 | Will Forte | ... | Mitch Miley |
| Prince Shah | ... | Store Manager |
| Benjamin Malone | ... | Motel Manager |
| Arielle Reitsma | ... | Slutty Girl |
 | Anya Garnis | ... | Destiny |
| Heather Leigh Davis | ... | Clothes Stylist |
 | Josh Randall | ... | Z-Guyeezz #1 - Donny |
| Jack Mountford | ... | Z-Guy #2 / Joey Z (as John Mountford) |
 | Elgin Kos Aponte | ... | Z-Guyeezz #3 - Kevy |
 | Eli Roth | ... | Stefano |
 | Veronica Berry | ... | Louise / Assistant #2 |
 | Karelix Alicea | ... | Sinnamon |
 | T.J. Miller | ... | Rolling Stone Receptionist |
| Nuno Bettencourt | ... | Rocker |
| Joel Hoekstra | ... | Rocker |
 | Deborah Gibson | ... | Rocker (as Debbie Gibson) |
