Skinny and shy, Guido's mutant powers were triggered in childhood when an incident with schoolyard bullies and being hit by a bus ended in his body becoming disproportionally large and overly muscled, separating the already withdrawn boy even further from his peers. Born in Rhinebeck, New York, to Italian parents, who tried to teach their son the value of a dollar, Guido Carosella showed this by earning a fortune in a settlement when his parents were killed by falling space debris.
