Mikhail Ursus was one of the first known mutants born in the Soviet Union in the 20th Century to survive past childhood. Up until the time of his birth, the Soviet government had been performing euthanasia on all mutants at the first manifestation of their superhuman powers. The government was made to see the potential value of superhumans serving the state due to the efforts of scientist Pieter Phobos.

Finally fed up with the Communist system, the three heroes defected to the United States only to be foiled by the People's Protectorate, being brought back to a scientific base for unknown purposes before being rescued by Blindfaith and his mutant “exiles” in order to form an underground team that would fight for the people under a government that hates and fears them.

Later, Ursa Major followed Vanguard into the employ of General Tskarov, a communist sympathisizer who wanted to undermine American business along the East Coast. Ursus only agreed, however, in order to find the missing Darkstar, whom Ursa Major found in Tskarov's labs, being experimented on. Ursa, Darkstar, and Vanguard then joined the Black Widow and Daredevil in taking Tskarov down. Presumably, Ursa returned to the mother country to continue his crime-fighting there.

SCULPTED BY TOYMANCUSTOMS ARTIST CARLO NUNEZ , PAINTED BY PAUL ARMAND ALMENDAREZ PHOTOGRAPHY BY TOYMAN!!!!