Marcus Damon is the main protagonist appearing in Digimon Data Squad. He has brown hair and olive-green eyes. His main outfit consists of: a white shirt with short sleeves under an unbuttoned red shirt, blue jeans and red sneakers. He is 14 years old. He was born in April 2, 1993.
- Sarah Damon (Mother)
- Spencer Damon (Father)
- Kristy Damon (Younger Sister)
- Kaname Chidori (Married Love Interest)
- Shunya Chidori (Father-in-Law)
- Ayame Chidori (Sister-in-Law)
- Morty Manta (Son)