Timmy Halloran was a victim of the Theta Virus. He was targeted for recruitment by Rachel Deming and Malcolm Kort, since the virus infection could be manipulated to create powerful Ultras. Deming's Exiles failed to stop Kort's agents from kidnapping Timmy and killing his mother.
The Exiles stormed Visionary Productions to rescue Timmy while Kort was putting him through the m-RNA process to activate his abilities. Timmy transformed into Mastodon during the conflict, and went on a rampage through the streets. He ultimately escaped both the Exiles and Kort, as the majority of the parties involved were killed by either Ghoul or Amber Hunt.
Powers and Abilities
- Transmorph: Timmy can transform from a normal teenager into an elephant-like ultra-human.