- English Name: Darien Shields
- Japanese Name: Mamoru Chiba
- Age (Season 1, 1992): 17-18
- Birth Date: August 3, 1974
- Astrological Sign: Leo
- Height: 6'2"
- Blood Type: A
- Hobbies: Reading, jogging
- Favorite Color: Black
- Favorite Gemstone: Diamond
- Favorite Food: Chocolate, especially hot cocoa
- Least Favorite Food: None
- Favorite School Subject: Physics
- Least Favorite School Subject: None
- Strengths: Kindness, romance
- Weaknesses: Needles, Serena's crying
- Goal:To be a scientist