Inset: Getty Images
Earlier this year, Josh Hutcherson (who plays Peeta Mellark) was accused of sending naked pics to women on a dating site under the alias Connor (his brother's name). While fans couldn't see his face, the tattoo on the subject's right hip was nearly identical to one Hutcherson has. Hutcherson never addressed the pic.
Jennifer Lawrence, aka Katniss Everdeen, dared to bare -- except for body paint and some pasties -- while filming X Men: Days of Future Past in 2011.
Like many stars, Miley Cyrus' ex, Liam Hemsworth (Gale Hawthorn) got naked to make his mark in an early role. He played a male prostitute for Australian series Satisfaction in 2008.
Woody Harrelson, who plays Hunger Games trainer Haymitch Abernathy, showed nearly everything while skinny-dipping with pal Owen Wilson in Miami in 2008. He also stripped down with Antonio Banderas in the 1999 film Play It to the Bone.
Paula Malcomson, who plays Katniss' mom, got naked many times while playing a prostitute, Trixie, on the short-lived HBO series Deadwood.
President Snow, Donald Sutherland, looked less-than-presidential when he stripped down for a torrid sex scene with Julie Christie in 1973's Don't Look Now. Their hookup was so hot, it's rumored to be 100% real.
How would Katniss and Peeta's stylist, Cilla, feel about a cock ring? The man who plays him, Lenny Kravitz, is certainly a fan, as he showed in this early promo shot.
Philip Seymour Hoffman's naked romp with Marisa Tomei in 2007's Before the Devil Knows You're Dead was once voted one of the top ten worst sex scenes of all time. Hopefully, his performance as Gamemaker Plutarch Heavensbee will be more convincing.
Hunger Games newcomer Alan Ritchson, set to play Gloss, should be a hit with female fans if his past as a nude model is any indication.
Another newbie, Amanda Plummer, who will play Wiress, has stripped down several times in her career as an indie actress: these scenes from 1995's Butterfly Kiss and 1999's The Apartment Complex are just a few examples.
Jena Malone has plenty of experience getting naked and it's a good thing, because she has a nude scene in Catching Fire! For a preview, check out these revealing shots from a 2011 spread in S Magazine.