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 Ellen Greene Guest Star Ray Park Guest Star Dawn Olivieri Guest Star Deanne Bray Guest Star Ernie Hudson Guest Star Mark L. Young Guest Star Carlease Burke Guest Star Edward Gusts Guest Star Harry Perry Guest Star Daryl Crittenden Guest Star