Jack Coleman Mr. Bennet, HRG Actor Greg Grunberg Matt Parkman Actor Ali Larter Tracy Strauss, Niki Sanders, Jessica Actor James Kyson Ando Masahashi Actor Masi Oka Hiro Makamura Actor Hayden Panettiere Claire Bennett Actor Adrian Pasdar Nathan Petrelli Actor Zachary Quinto Sylar Actor Sendhil Ramamurthy Mohinder Suresh Actor Dania Ramirez Maya Herrera Actor Cristine Rose Angela Petrelli Actor Milo Ventimiglia Peter Petrelli Actor Andre Royo Guest Star David Anders Guest Star Brea Grant Guest Star Jamie Hector Guest Star Malcolm McDowell Guest Star Alan Blumenfeld Guest Star Ashley Crow Guest Star Jessalyn Gilsig Guest Star David H. Lawrence XVII Guest Star Ron Perkins Guest Star Robert Forster Guest Star Matthew Wiese Guest Star B.J. Clinkscales Guest Star