Question: Cheburashka is voiced by a Soviet and Russian actress and singer who was active from 1951 until what year?
Sentence (from "Cheburashka"): He is also the protagonist (voiced by Klara Rumyanova) of the stop-motion animated films by Roman Kachanov (Soyuzmultfilm studio), the first film of which was made in 1969.
Relevant evidence: Yes