Yefim Zakharovich Kopelyan (Russian: Ефим Захарович Копелян; 12 April 1912 – 6 March 1975) was a Soviet actor of theatre and cinema, one of the legendary masters of the Bolshoi Theatre of Drama (BDT) in Leningrad. He performed bright, characteristic roles in the films The Elusive Avengers, Intervention, Eternal Call, The Straw Hat, and many others. He is also known for the voice-over in the hit TV series Seventeen Moments of Spring. At the end of his education, Kopelyan became an actor on the main staff of the BTD. These early years in the theatre were not notable for any special successes.