'Heroes' Season 3 Cast - Milo Ventimiglia as Peter Petrelli

Will Peter's sudden violent nature put many lives in danger? Milo Ventimiglia stars as Peter Petrelli in season three of NBC's hit drama Heroes.

More About Heroes

• Synopsis and Other Essential Information
• Spoilers/Episode Guide

Cast Biographies

• Adrian Pasdar
• Ali Larter
• Greg Grunberg
• Hayden Panettiere
• Masi Oka
• Milo Ventimiglia
• Noah Gray-Cabey