Princess Fiona is a fictional character in DreamWorks' Shrek franchise. One of the film series' main characters, Fiona first appears in Shrek (2001) as a beautiful princess cursed to transform into an ogre at night. She is initially determined to break the enchantment by kissing a prince or knight, only to meet and fall in love with Shrek, an ogre, instead. The character's origins and relationships with other characters are further explored in subsequent films: she introduces her new husband, Shrek, to her parents in Shrek 2 (2004); becomes a mother by Shrek the Third (2007); and is an empowered warrior in Shrek Forever After (2010), much of which takes place in an alternate reality in which Fiona and Shrek never meet. Created by screenwriters Ted Elliott and Terry Rossio, Fiona is loosely based on the unsightly princess in William Steig's children's book Shrek! (1990), from which her role and appearance were significantly modified. The screenwriters adapted the character into a princess under a shapeshifting enchantment, an idea initially greatly contested by other filmmakers. Fiona is voiced by actress Cameron Diaz. Comedian and actress Janeane Garofalo was originally cast as the character until she was fired from the first film with little explanation. Fiona was one of the first human characters to have a lead role in a computer-animated film, thus the animators aspired to make her both beautiful and realistic in appearance. However, an early test screening resulted in...