[1] Mikhail is the son of People's Artist of the USSR Oleg Yefremov and Sovremennik Theatre actor Professor Alla Pokrovskaya (Boris Pokrovsky's daughter).

[2] In 2009-2014, Yefremov presented Channel One show Wait for Me, dedicated to search of long lost relatives and friends.

[2] Yefremov read poems, written by Bykov, which are usually satirical comments on the contemporary Russian society, politics and culture.

[4] On September 8, 2020, Yefremov was sentenced to 8 years in a medium-security prison, as well as obligated to pay 800,000 rubles (around $10,000) in restitution to the family of the deceased driver.

Prior to the incident, Yefremov was set to star in the Russian detective/fantasy series Vampiry Sredney Polosy (Вампиры средней полосы, Vampires of Central Russia).