Scarlett Johansson
Not only is Johansson one of the hardest working blondes in Hollywood, but also one of the most profitable. She got her start in the picture North (1994), starring alongside a young Elijah Wood, and sprang into all sorts of films from the indie favorite Ghost World (2001) to the award-nominated romance Lost in Translation (2003) with Bill Murray. Her filmography has become rather crowded in recent years, but most audiences know her as Black Widow from the Marvel Cinematic Universe. In the recent Avengers footage released from San Diego Comic Con, it appears as though she’ll be bringing back her natural blonde hair for the role, shirking the familiar red hair she’s usually featured.