3. Jaime Murray
Taking US TV by storm at the moment, she probably first came to your attention in the hit BBC series Hustle in which she played a con artist. The show called for her to portray several roles all at once as the cons required tremendous acting talents to convince the mark that you were someone they could trust. Across the pond she has been exaggerating her Englishness in various US TV roles, such as in the Showtime crime drama Dexter and in the science fiction world of Warehouse 13 as Helena G. Wells. She is currently working on the Syfy series Defiance so she has some considerable experience kicking alien and unusual butt. Rumour has it she also auditioned for the part of Wonder Woman in the upcoming film adaptations. If she'd got the role, she'd suddenly be too big for the BBC.