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 Jimmy Jean-Louis Guest Star David Anders Guest Star Dana Davis Guest Star James Kyson Ando Masahashi Guest Star Zachary Quinto Sylar Guest Star Nicholas D'Agosto Guest Star Katie Carr Guest Star Ashley Crow Guest Star Cristine Rose Angela Petrelli Guest Star Barry Shabaka Henley Guest Star Dominic Keating Guest Star Holt McCallany Guest Star Eriko Tamura Guest Star Adair Tishler Guest Star Stephen Tobolowsky Guest Star Dania Ramirez Maya Herrera Guest Star Shalim Ortiz Guest Star Allan Arkush Director