Ulysses Phillips is the deuteragonist of Let's Fly and Fight!
- Gender: Male
- Age: 17
- Birthday: August 17
- Friends: Emily Heartman (best friend), Tiffany Herington, Matthew Nelise
- Enemies: Katherine Malanson
- Occupation: Student
- Species: Human (Ulysses), Human demon (The Demon Prince)
- Hair color: Black (Ulysses), Red (The Demon Prince)
- Eye color: Hazel (Ulysses), Red (The Demon Prince)
- Alter ego: The Demon Prince
- Voiced by: Troy Baker
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