Markus was born from a Viltrumite female named Anissa who took Invincible by force. She later regretted the decision and married a human man but hid her son from Invincible until later. Markus would meet his true father when he was only a few years old and learn of his origin as one of the Viltrumites.
Powers & Abilities
Technically, Markus is more human than Viltrumite as his father was half-human and half-Viltrumite, his mother was pure Viltrumite, he still retains all Viltrumite abilities; flight, invulnerability, super strength, super speed, longevity and increased healing.