Stars -- times two! From beloved blonde duo Mary-Kate and Ashley Olsen, to Scarlett Johansson and her hunky twin brother, Hunter, see which famous stars have the twin chromosome!
Scarlett Johansson and Hunter Johansson
She may be three minutes older, but ScarJo's twin brother Hunter is a foot taller than his superstar sis. The pregnant (and engaged!) actress has taken her brother, who worked on President Obama's 2008 campaign and reelection, to numerous high-profile events, including the White House Correspondents Dinner one year.