No visible pupils, Constantly gives off radiation; Iridescent green skin which he can cause to appear normal by lowering his radiation level for short periods.
Radioactive Man attacked the Avengers with Crossfire and Taskmaster for the Masters of Evil. In the fight he stalled long enough to allow Taskmaster and Black Ant to leave with information important to the Masters of Evil, but was eventually beat by Torunn. After that he was thrown into the Vault and has been there ever since.
