Lastlight started his life as a member of the hive ship of Highcloud, a powerful Wraith Queen. He was a warrior but with the mind of a scientist and grew to be highly ranked amongst his hive for over a hundred years. He was taken captive by the Atlantis expedition to be a test subject for the Iratus bug retrovirus which turned him human.

Given the name Michael, he had no memories at first but soon discovered the truth and escaped. His Wraith DNA started to reassert itself, as did his memories, but he was stuck as a Human-Wraith Hybrid. With neither the Wraith nor Humans accepting him as one of them, Michael created more Human-Wraith Hybrid and led them on an invasion of Atlantis.

During the siege he was thrown off Atlantis' Control Tower and fell thousands of feet to his death.