Leonid Iovich Gaidai (Russian: Леони́д И́ович Гайда́й; 30 January 1923, Svobodny, Amur Oblast – 19 November 1993, Moscow) was one of the most popular Soviet comedy directors, enjoying immense popularity and broad public recognition in the former USSR & modern Russia. His movies broke theatre attendance records and are still some of the top-selling DVDs in Russia.

Gaidai was born on January 30, 1923 in Svobodny, Amur Oblast, where he is commemorated by a statue. After serving in the Red Army during the Second World War (where he was seriously wounded by a landmine), Leonid Gaidai attended the Moscow Institute of Cinematography. He married the actress, Nina Grebeshkova, who played minor roles in his future films. His first success came 6 years after graduation, with a segment of the short film collection "Sovershenno seryozno" (1961), which instantly became highly popular. In this movie Gaidai first introduces a comic trio of crooks - Yury Nikulin, Georgy Vitsin, and Evgeny Morgunov who later appear in several of his other films. After his characters and directing style won the public's love, his name gained massive selling power in USSR's movie theatres.

Yuri Vladimirovich Nikulin (Russian: Юрий Владимирович Никулин; 18 December 1921 – 21 August 1997) was a well-known Soviet and Russian actor and clown who starred in many popular films.

He was awarded the title of People's Artist of the USSR in 1973 and Hero of Socialist Labour in 1990. He also received a number of state awards, including the prestigious Order of Lenin, which he received twice in his lifetime.

Nikulin was born just after the end of the Russian civil war, in Smolensk in Western Russia. His mother was a garage supervisor and his father a writer of satirical plays – "a profession which may have influenced [Nikulin's] future career"." Nikulin fought in the Red Army in the Winter War with Finland and the World War II with Germany. He reportedly had a comparably "long period of military service, from 1939 to 1946, preparing to be demobilised just when the German invasion of the Soviet Union began in 1941."

Nikulin's effortless style and precise delivery, as well as his mastery of timing and his hilarious masks made him an outstanding comedian, arguably the best Russian comedian ever. Nikulin showed his range in a variety of genres from slapstick comedy to romance and war drama. His most popular film partners were Georgiy Vitsin, Yevgeni Morgunov, Natalya Varley, Rolan Bykov, Anatoli Papanov, Sergei Filippov, Mikhail Pugovkin, Aleksandr Demyanenko, Leonid Kuravlyov, Andrey Mironov Evgeni Evstigneev, Vasili Shukshin, Vyacheslav Tikhonov, Sergei Bondarchuk, Nikolay Burlyaev, Viktor Pavlov, Boris Novikov Vladimir Etush, Saveli Kramarov, Nikolai Grinko, and many other notable Russian actors