5. Rachel Bilson
Another off the grid pick, but I was a fan of The O.C. so I'll make a case for her. Although she seems to be a mainstay on television, (currently staring in the show Hart of Dixie), she has starred in a couple of decent movies. Bilson's character was feisty and outspoken on the O.C., which is exactly what Wonder Woman needs to be among a powerful group of mainly men. Wonder Woman has to hold her own not only in battles, but in arguments regarding important matters with other Justice League members. Bilson has that type of screen energy and enthusiasm to hold her ground and maker her someone you think twice before messing with. If you want an example of her aggressive attitude, YouTube her rap video she made (parodying her show Hart of Dixie). The only problem I can see with this casting is her physical presence isn't quite that intimidating, especially being about 52 feet tall. If she was taller and had a bit more build, she would be one of my top choices. Regardless it would be an interesting casting choice and one I would give a chance. But hey, she's also already modeled the costume on The O.C.