Megan Kathleen Hilty is an American actress and singer. She rose to prominence for her roles in Broadway musicals, including her performance as Glinda in Wicked, Doralee Rhodes in 9 to 5: The Musical, and her Tony Award–nominated role as Brooke Ashton in Noises Off. She also starred as Ivy Lynn on the musical-drama series Smash, on which she sang the Grammy Award-nominated "Let Me Be Your Star", and portrayed Liz on the sitcom Sean Saves the World.

Glinda is a fictional character created by L. Frank Baum for his Oz novels. She first appears in Baum's 1900 children's classic The Wonderful Wizard of Oz, and is the most powerful sorceress in the Land of Oz, ruler of the Quadling Country South of the Emerald City, and protector of Princess Ozma.