Worst Performances: Transformers: Revenge of the Fallen (2009), Immortals (2011)
With her statuesque physique and attractive looks, Australian actress Isabel Lucas is as cute as Pixie doll, and nearly as inanimate. Those big, gorgeous eyes certainly work wonders when it comes to pulling viewers' own pupils her way as she acts, but that's basically all that Lucas has to offer. As a performer, she's quite vacuous. Which worked to her advantage in Transformers: Revenge of the Fallen, where she played an emotionless alien in human disguise.