Sendhil Ramamurthy Mohinder Suresh Actor Milo Ventimiglia Peter Petrelli Actor Adrian Pasdar Nathan Petrelli Actor Hayden Panettiere Claire Bennett Actor Ali Larter Tracy Strauss, Niki Sanders, Jessica Actor Noah Gray-Cabey Actor Santiago Cabrera Actor Tawny Cypress Actor Masi Oka Hiro Makamura Actor Greg Grunberg Matt Parkman Actor Jack Coleman Mr. Bennet, HRG Actor Katie Carr Guest Star Stephen Tobolowsky Guest Star Nicholas D'Agosto Guest Star David Anders Guest Star Kristen Bell Guest Star Dana Davis Guest Star James Kyson Ando Masahashi Guest Star Zachary Quinto Sylar Guest Star Dania Ramirez Maya Herrera Guest Star Alan Blumenfeld Guest Star Jimmy Jean-Louis Guest Star Shalim Ortiz Guest Star Eriko Tamura Guest Star Adair Tishler Guest Star Cristine Rose Angela Petrelli Guest Star Ashley Crow Guest Star Mark Harelik Guest Star Randall Bentley Guest Star Kenji Nakamura Guest Star Joey Bucaro Guest Star