Born in Leningrad. In 1967 graduated from the Leningrad State Institute of Theatre Music and Cinematography (Georgy Tovstonogov's class). Worked as an actress at the the Leningrad Leninsky Komsomol Theatre in Leningrad from 1967 till 1970, then from 1970 till 1972 - at the Russian Drama Theatre in Riga, Latvia. Filimonova was accepted into the Company of the Leningrad Drama and Comedy Theatre (presently the Theatre on Liteiny) in 1972 and worked there till 1974. She has acted with the Maly Drama Theatre since 1974. Filimonova is a Merited Artist of Russia (1993). She plays Valentina in Stars in the Morning Sky, Marya Netesova in Brothers and Sisters, Varvara Petrovna in The Devils, Komachi in The Damask Drum, Belisa's mother in The Lone of Don Perlimplin.
- Merited Artist of Russia