Sergei Udaltsov
- Isihloko: Sergei Udaltsov
- Ukuthandwa: 0.001
- Yaziwa ngokuba: Acting
- Usuku lokuzalwa: 1977-02-16
- Indawo yokuzalelwa: Moscow, USSR (now Russia)
- Iphepha lasekhaya: https://www.leftfront.org
- Kwaziwa njenge: Сергей Удальцов, Sergey Udaltsov
