Martin Valko
- AKA: Sergei
- Birthday: n/a
- Astrology: n/a
- Birthplace: Slovakia
- Years Active: 1993 - 1999
- Ethnicity: Caucasian
- Nationality/Heritage: Slovak
- Hair Color: Black
- Measurements: n/a
- Height: 178
- Weight: 86
- Tattoo: n/a
- Piercing: n/a
- Frequent partners: Lukas Ridgeston, George Duroy, Michal Tarkus, Johan Paulik, Milos Janek
- Website: n/a