Norman Osborn: Few villains are more terrifying than the original Green Goblin, Norman Osborn. "Cured" of his supervillain past he now leads the Thunderbolts - a group of former villains tasked with hunting down rogue heroes.
Penance: Tortured by his part in causing the Civil War, Robbie Baldwin put away his Speedball costume and adopted a more severe identity as Penance. 612 internal spikes keep Penance in constant pain in honor of the 612 civiliance killed in Stamford.
Radioactive Man: Nuclear physicist Chen Lu battled super heroes for years before seeking redemption with the Thunderbolts team. His control of radiation and electromagnetism is impressive, however he must still wear protective gear to interact with friends and civilians.