Question: Who voiced the protagonist in the popular films directed by Roman Abelevich Kachanov?

Context paragraphs:
Cheburashka (film): Cheburashka (Russian: Чебурашка , "Cheburashka " ) is a 1972 Soviet/Russian animated film directed by Roman Kachanov.

Roman Abelevich Kachanov: Roman Abelevich Kachanov (Russian: Роман Абелевич Качанов ; 25 February 1921 – 4 July 1993) was a Soviet animator who worked primarily in the stop-motion animation technique.  He directed the popular series of films about Cheburashka based on the fairy tales written by Eduard Uspensky: "Gena the Crocodile", "Cheburashka", "Shapoklyak" and "Cheburashka Goes to School".

Michael Luciano: Michael Luciano (May 2, 1909 – September 15, 1992) was an American film and television editor with about forty feature film credits and many additional credits for television programs.  From 1954 to 1977, Luciano edited 20 (nearly all) of the films directed, and often produced, by Robert Aldrich.  Aldrich was a prolific and independent maker of popular films "who depicted corruption and evil unflinchingly, and pushed limits on violence throughout his career."  Their early collaboration, the film noir "Kiss Me Deadly" (1955), was entered into the US National Film Registry in 1999; the unusual editing of the film has been noted by several critics.  Luciano's work with Aldrich was recognized by four Academy Award nominations, for "Hush... Hush, Sweet Charlotte" (1964), "The Flight of the Phoenix" (1965), "The Dirty Dozen" (1967), and "The Longest Yard" (1974).  The Academy of Motion Picture Arts and Sciences never recognized Aldrich himself.

Monkey-ed Movies: Monkey-ed Movies is a series of short films broadcast on the Turner Broadcasting System in the late 1990s.  The films parodied popular films or television programs that were currently being broadcast on TBS with the use of costumed chimpanzees and orangutans voiced by human actors.

Gena the Crocodile: Gena the Crocodile (Russian: Крокодил Гена, "Krokodil Gena" ) is a fictional, friendly crocodile in the series of animation films "Gena the Crocodile", "Cheburashka" and "Shapoklyak" by Roman Kachanov (Soyuzmultfilm studio).  He debuted in the 1966 novel "Gena the Crocodile and His Friends" by Eduard Uspensky.

The Mystery of the Third Planet: The Mystery of the Third Planet (Russian: Тайна третьей планеты , "Tayna tretyey planety"), aka The Secret of the Third Planet is a 1981 Soviet traditionally animated feature film directed by Roman Kachanov and produced by the Soyuzmultfilm studio in Moscow.  It is based on a children's science fiction novella ""Alice's Travel"" by Kir Bulychov, from "Alisa (Alice) Selezneva" book series.

Two Tickets to India: Two tickets to India (Russian: Два билета в Индию , "Dva bileta v Indiu") is a 1985 Soviet/Russian traditionally animated feature film directed Roman Kachanov.  It was produced at the Soyuzmultfilm studio in Moscow and is based on the story of the same name by Kir Bulychov.  Compared to the book the story was significantly shortened.

Shapoklyak: Shapoklyak (Russian: старуха Шапокляк, Staruha Shapoklyak - Old Lady Shapoklyak) was a popular villain from a story about Cheburashka written by Russian writer Eduard Uspensky.  The first appearance of Shapoklyak (in the movie) was in the animated film "Gena the Crocodile" (1969) by Roman Kachanov (Soyuzmultfilm studio).

The Mitten (film): The Mitten (Russian: Варежка, Varezhka ) is a 1967 Soviet animated film directed by Roman Kachanov.  The film received international recognition.

Cheburashka: Cheburashka (Russian: Чебура́шка ; ] ), also known as Topple in earlier English translations, is a character in children's literature, from a 1966 story by Soviet writer Eduard Uspensky.  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.

Supporting paragraphs: Roman Abelevich Kachanov Cheburashka
Answer: Klara Rumyanova