Joseph Gordon Levitt and Jennifer Lawrence as Jacen and Jaina Solo
These twins of Leia and Han exist solely in the <em>Star Wars</em> Expanded Universe. Some of their arcs are kind of surprising—after showing loads of promise, he went all Anakin and went to the dark side, eventually becoming Darth Caedus. Jaina, an even bigger badass than her brother, was forced to face him (spoiler: she wins!) and eventually becomes a Jedi master. We think JGL and JLaw look enough alike to pass as fraternal twins, and we know they have the chops to bring these genetically superior twins to life. It’s a (t)win/win situation!