You might not recognise this week’s hot sci-fi hunk Greg Plitt. If you picture him running around all naked and glowing blue, you might realise that Greg was in fact the body double for Watchmen’s Dr Manhattan, played by Billy Crudup. Watchmen VFX supervisor John (DJ) DesJardin urged Zack Snyder to cast a body on which animators could base Manhattan’s ultra-ripped physique. Snyder chose fitness model and actor Greg Plitt; the VFX crew took digitized Plitt in 3D and took high-definition video of the model against a grid with muscles relaxed, flexed and tensed. The crew then 3D-digitized Crudup’s head and “frankensteined Billy’s head onto Greg’s body,” Pete Travers, the visual-effects supervisor at Sony Imageworks explained.

He also played a hybrid male in Terminator Salvation, but enough of all the technobabble. Here’s Greg Plitt in all his natural glory.