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 Carlon Jeffery Guest Star Nichelle Nichols Guest Star Stephen Tobolowsky Guest Star Dania Ramirez Maya Herrera Guest Star Leonard Roberts Guest Star Cristine Rose Angela Petrelli Guest Star Jimmy Jean-Louis Guest Star Shalim Ortiz Guest Star Rena Sofer Guest Star Jessica Anne Bogart Guest Star Chris Hendrie Guest Star Jose Rosario Guest Star Emerson Brooks Guest Star