Greg Dickering, adopted son of John and Thelma Dickering, grew up never knowing his father was the heroic Comet. His adoptive parents raised Greg to be a bright, successful young man.
When the Brain Emperor attacked a reunion of the original Mighty Crusaders, Greg's parents were apparently killed, but he was saved by his parents' old teammate The Shield, as were the five other teenagers that had been at the party. From this old hero Greg learned the truth about his adoptive parents, and learned they had wanted him to follow in his father's footsteps should anything ever happen to them. After receiving a treatment meant to replicate the accident that gave the his father superpowers, Greg became the new Comet, and joined the New Crusaders.