Honored Artist of the RSFSR (10/03/1986). Upon graduation, he entered the Leningrad Shipbuilding Institute. Being an active participant in student amateur performances, he played one of the main roles in the play "On Pilot, 3". At the same time he continued his studies in the drama club. After two years, he decided to change his profession, left the institute, and in 1954 went to Moscow, where he entered the acting department of the Schepkin drama school. After graduating from it in 1958, he returned to Leningrad and was enlisted in the state of actors of the Lenfilm film studio and the Leningrad theater-studio of a film actor. In 1961, for four years he left to work in Germany, to the theater of the Group of Soviet Forces. For 44 years of work in the cinema, he played roles in more than a hundred films. He was a master of the episode, and the audience remembers his roles in such tapes as “Night Guest”, “Weekdays and Holidays”, “That Far Summer”, “Dauria”, “Treasure Island”, “Charlotte's Necklace”. In parallel with acting, he worked a lot on dubbing, becoming later an unsurpassed master of this craft. Actor voiced characters over 630 paintings, both foreign and domestic. Among them, such as "The Lion in the Winter", "The Assassins in the Name of Order", "The Servants of the Devil", "Feelings", "Nobody Wanted to Die", "Five from the Sky", "White Sun of the Desert" and many others. Efimov’s ability to imitate the voices of others allowed him to voice Vasily Shukshin in the films “They Fought for the Motherland” and “I Ask the Words”, Armen Dzhigarkhanyan in “Dog in the Seine” and “Yaroslavna - Queen of France”, Ivan Lapikov in “Bribe”, Borislav Brondukova in “The Adventures of Sherlock Holmes and Doctor Watson”, by Anatoly Papanov in “The Cold Summer of the 53rd ...”. The actor also voiced the roles of Pavel Pankov, Ivan Pereverzev, Pavel Kadochnikov and many others. This was done so professionally that neither the spectators nor the colleagues noticed that the characters of these actors were not speaking from the screen in their own voice. He passed away on November 16, 2000 in St. Petersburg. The actor was buried in the Northern cemetery.