When it comes to Broadway, Becca Petersen does it all. Not only is she a swing learning multiple roles for Mean Girls on Broadway as well as understudy for the principal roles of Cady Heron and Regina George, but she also plays an administrative role as the assistant dance captain. When she's not onstage dancing one of the 10 different tracks she covers, or acting out two of Broadway's most notorious mean ladies, she's in the audience, taking notes in order to clean choreography in the next rehearsal. "Once the show opens and the creative team leaves, the dance captains, stage managers and associates keep things running," Petersen says. "I help teach choreography to newcomers when there is turnover and make sure the dancing looks good from day to day."