It's that time again! Some of the biggest names in Hollywood stepped out to celebrate Halloween 2013, dressed as film characters, other A-listers, comic superheroes and much more! Check out some stars -- including Hilary Duff, Vanessa Hudgens and John Stamos -- who went the extra mile to get decked out for some of the biggest Halloween parties of the season.
Mom's a superhero! While taking her children around, Denise Richards dressed up as Wonder Woman. Her little girls Sam and Lola dressed as Pippi Longstocking and a cheerleader respectively while visiting at the home of Richards' ex-husband Charlie Sheen's house in Los Angeles on Oct. 31, 2013.