- Name: Megan Williams, the Heroine of Light and the Princess of Freedom
- Race: Human; Alicorn; Hybrid Harmony Siren-Pony
- Cutie Mark: A gold heart with a silver ribbon around it.
- Age: 18
- Occupations: Guardian of the Princesses, the Heroine of Light, the Princess of Freedom, tour guide of Equestria, adventurer in Pony Land, ambassador of Siren-Pony Alliance, member of the Mane Group
- Traits: Half girly and half tomboyish, faithful, caring, level-headed, strict, heroic, helpful, friendly, leader-like, smart, understandable, loyal, cheerful, generous, honest, kind, patient, brave, creative, loving, funny, believer, gentle, beautiful, motherly, mature, resourceful, adolescent
- Pet: Sofya (pet opossum)
The DreamWorks reboot version of Megan is much different from her original counterpart. Gentle, beautiful and motherly, but also mature and resourceful, she acts as the Little Ponies' leader, and in times of crisis Twilight and the others would always call her to come over. She keeps the Rainbow of Light, a special locket which contains a powerful rainbow to defeat anything that is evil threatening the creatures.
Born on the planet earth, she is a teenage girl who lives with her father, two younger siblings, and her six friends. Throughout her younger years, she met lots of ponies and creatures in Pony Land. Whenever she visits Equestria, she turns into an alicorn like Twilight, Sunset and the Princesses.
She first appears in the television special "My Little Pony: A Canterlot's Wedding", where she slides down a rainbow to Equestria. She meets Twilight, the Beta Six, and Garble. She helps to defeat Queen Chrysalis and save Princess Cadence, the ruler of the Crystal Empire. Later on, she gains her own element: Faith (which is linked to Heart and Miracles).
- Danny Williams:
- Molly Williams:
- Rosie Pie: