Jack Coleman Mr. Bennet, HRG Actor Greg Grunberg Matt Parkman Actor Robert Knepper Samuel Sullivan 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 Cristine Rose Angela Petrelli Actor Milo Ventimiglia Peter Petrelli Actor Deanne Bray Guest Star Madeline Zima Guest Star Dawn Olivieri Guest Star Louise Fletcher Guest Star Assaf Cohen Guest Star Rick Worthy Guest Star David Pompeii Guest Star Edwin Kho Guest Star Susan Angelo Guest Star Daniel Kash Guest Star Daryl Crittenden Guest Star