Arnold is the son of Mildred and Clifford Harvey and grew up on their dairy farm on Old Mill Road west of Fennimore, Wisconsin. He manifested as a mutant right after Junior High graduation, discovering his powers during the summer of 2004.
He used to be made fun of due to his rural background back at his hometown. This situation was repeated in his freshman year at Whateley, until he knocked out a group of four Alphas picking on him including Hardtack, Crustal, Lasertag and Flyboy. Afterwards he was rushed into the Alphas himself, becoming part of their hit squad. He eventually figured out that the whole thing had been engineered by Don Sebastiano.
Before manifesting he was an average overweight farmboy with brown eyes. Now Arnold is 6’ 5” tall and has a stocky build, weighting 210 lbs. He has a long, lantern-jawed face, black eyes and short curly black hair.
Aries is seen as the sort of bully who prefers practical jokes to blatantly pushing people around; with his burst of amazing speed, he can pull off some truly remarkable feats of legerdemain.
In fact, he used to despise bullies and was appalled when he figured out he had become one of them. By the time he realized this, he was in too deep to simply walk away.
In return for a family mortgage being paid off he functions as Phase's informant in the Alphas. After Kodiak's purge of the Alphas, he asked Aries to appear to accepting Sebastiano's overtures, in order to spy on Sebastiano for Kodiak. Of course, Sebastiano wanted Aries to spy on Kodiak. Aries eventually went to Chief Delarose to tell the whole messy story, and he now also works as Delarose's agent.
His Scholarship job is with the groundskeepers, a job where his farming experience is very useful.
- Don Sebastiano
- Flicker (girlfriend)
- Blake (Roommate, first few months of Freshman year)
Aries was involved in an escalating war with Phase, culminating in Phase being entombed in ice courtesy of Icer, prevented from escaping by Hamper and Damper; the second such entombment backfired as Phase had obtained a Psi Grenade from Sin d'Rome's Mercenary Emporium.
Flicker, acting in Tansy's name, sent Aries to terrorize Joanne Gunnarson. It backfired, and Aries decided he'd had enough. A deal was made: Joanne would discommode Tansy, and Aries would leave the Whitman girls alone.