Real Name: Unknown
Occupation: Ruler of Limbo
Identity: Secret: His existence is not known to the general public of Earth.
Legal Status: Former citizen of Earth, citizen of Limbo
Former Aliases: Kang the Conqueror and Rama-Tut
Place of Birth: Earth
Marital Status: Single
Known Relatives: Nathaniel Richards (ancestor)
Group Affiliation: None
Base of Operations: Limbo, outside the timestream
First Appearance: AVENGERS #10

History: Immortus was born in one of Earth's alternate futures of the 31st Century (a different one from that which was conquered by the alien Badoon) and being a man of adventure in a time of world peace and prosperity, he was discontent. Discovering the parts of a time machine and the plans for its assembly in the ruins of one of his ancestors' property, the man who would become Immortus embarked upon a life of conquest and adventure, exploring and ransacking time era after time era, under such guises as Pharaoh Rama-Tut, Kang the Conqueror, and others. He established strongholds or kingdoms across time. By his constant time travel, he diverged countless temporal counterparts to himself, each capable of independent existence and further travel.

Shaped by differing sets of experiences, the legions of Immortus-to-be encompassed the gamut of human diversity, from petty tyrants to selfless martyrs. One of these counterparts, whose life had at times embraced the basest of motives and actions, decided in his seventh decade of his chronological life, to give up his worldly conquests and meditate till the end of his days upon the nature of time. This Immortus-to-be, who had been assuming the guise of Rama-Tut, journeyed to Limbo, the transtemporal realm that exists outside the timestream itself (and through which all time travelers must pass in order to get from one era to another). There he employed automatons to build him a castle, and upon its completion (which was instantly since time has no meaning in Limbo), he began to meditate.

Immortus was then visited by the Time-Keepers, a trinity of beings who had been born at the very end of the timestream, in the final days before the collapse of the universe. The Time-Keepers helped him unlock new secrets of time and appointed him to oversee the 80 millennia of his existence, a minor task when compared to the whole of Time itself. Creating a giant guardian for his castle, Immortus embarked upon a number of campaigns to untangle the skein of timelines that he and his counterparts had created by their indiscriminate use of time travel. Believing that most of the beings he encountered in his campaigns could not begin to understand the mysteries of time that motivated him, he frequently gave them facile or even misleading information to quell their curiosities or ease their anxieties. The beliefs of other beings were not important to him as long as they did not interfere with his duties as custodian of this segment of the timestream.

Height: 6 ft. 3 in.
Weight: 230 lbs
Eyes: Green
Hair: Grey

Strength Level: Immortus possesses the normal strength of a man of his physical age, height, and build who engages in no regular exercise.

Known Superhuman Powers: None. All of his abilities stem from his knowledge and technology, the nature of which is largely unknown, although it is certainly equal to or to that used by Kang.