Princess Toadstool

Princess Toadstool was depicted as constantly being in search of someone who could defeat Koopa forces, despite the fact that Mario and Luigi could do just that (and also the fact that most of the people they were looking for turned out to be of little to no help whatsoever). She looks a lot like Rosalina from Super Mario Galaxy. But, she was also the only one who could awaken both the Beanstar (due to voice being the purest) and the Dark Star.