The character appeared as a human in the live-action Marvel Cinematic Universe film Black Widow (2021), portrayed by Olivier Richters.

Ursus, Darkstar and Vanguard, Phobos' best-trained students, became founding members of the Soviet Super-Soldiers, a team of government agents.

After discovering Phobos' plan to spread radiation across the Soviet Union to create more mutants whose powers he could eventually siphon, the Super-Soldiers turn against him and bring him before the government to stand trial.

[3] With Vanguard and Darkstar, Ursa Major later attempted to defect to the United States, but they were beaten comatose by the Supreme Soviets.

[4] Later, Ursa Major followed Vanguard into the employ of General Tskarov, a communist sympathizer who wanted to undermine American business along the East coast.

[volume & issue needed] Ursa Major returns as part of the Winter Guard, helping them and War Machine fight off a Skrull attempt to steal Russian nuclear bombs.

When asked by the prison warden why Ursa Major had been incarcerated, Colonel Rostov replied "it's not too difficult to find treason or corruption charges on any government agent.

He was approached by a Russian official who states that they are bringing the Winter Guard back together while presenting a pardon as a condition of him joining.

[10] Ursa Major later represented the Russian government when he attended Black Panther's meeting in the Eden Room of Avengers Mountain.

Afterwards, Black Panther apologized and commented to the other representatives that he hoped that the Russian government would send Crimson Dynamo and that they sent Ursa Major on purpose.

[17][18] Ursa Major makes a cameo appearance in Lego Marvel Super Heroes 2 as a member of the Soviet Super-Soldiers.