From Mariah's naughty firefighter to Kim's Wonder Woman, see how celebs reveal their alter egos
Credit: Sara De Boer/Retna
Published: Thursday Nov 01, 2007 | 12:45 PM EDT
More from PEOPLE
See More News
It's not Halloween for these celebs, who've dressed up as pregnant prostitutes, electrified villains and '70s stunners for their upcoming roles
7 of 28
The actor went back to his Canadian roots, dressing up as a mountie with his family, wife Naomi Lowde-Priestley and daughter Ava, then 1, at the 2008 Dream Halloween bash, held at the Barker Hangar in L.A.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL