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Appearances
Heroes
Main cast, played by Zachary Quinto
- Episode 2x03: Kindred (Oct 8, 2007)
- Episode 2x04: The Kindness of Strangers (Oct 15, 2007)
- Episode 2x06: The Line (Oct 29, 2007)
- Episode 2x10: Truth & Consequences (Nov 26, 2007)
- Episode 2x11: Powerless (Dec 3, 2007)
- Episode 3x01: The Second Coming (Sep 22, 2008)
- Episode 3x02: The Butterfly Effect (Sep 22, 2008)
- Episode 3x03: One of Us, One of Them (Sep 29, 2008)
- Episode 3x04: I Am Become Death (Oct 6, 2008)
- Episode 3x05: Angels and Monsters (Oct 13, 2008)
- Episode 3x06: Dying of the Light (Oct 20, 2008)
- Episode 3x07: Eris Quod Sum (Oct 27, 2008)
- Episode 3x08: Villains (Nov 10, 2008)
- Episode 3x09: It's Coming (Nov 17, 2008)
- Episode 3x10: The Eclipse, Part 1 (Nov 24, 2008)
- Episode 3x11: The Eclipse, Part 2 (Dec 1, 2008)
- Episode 3x12: Our Father (Dec 8, 2008)
- Episode 3x13: Dual (Dec 15, 2008)
- Episode 3x14: A Clear and Present Danger (Feb 2, 2009)
- Episode 3x15: Trust and Blood (Feb 9, 2009)
- Episode 3x16: Building 26 (Feb 16, 2009)
- Episode 3x18: Exposed (Mar 2, 2009)
- Episode 3x19: Shades of Gray (Mar 9, 2009)
- Episode 3x21: Into Asylum (Mar 30, 2009)
- Episode 3x22: Turn and Face the Strange (Apr 6, 2009)
- Episode 3x24: I Am Sylar (Apr 20, 2009)
- Episode 3x25: An Invisible Thread (Apr 27, 2009)
- Episode 4x01: Orientation (Sep 21, 2009)
- Episode 4x02: Jump, Push, Fall (Sep 21, 2009)
- Episode 4x03: Ink (Sep 28, 2009)
- Episode 4x04: Acceptance (Oct 5, 2009)
- Episode 4x05: Hysterical Blindness (Oct 12, 2009)
- Episode 4x06: Tabula Rasa (Oct 19, 2009)
- Episode 4x07: Strange Attractors (Oct 26, 2009)
- Episode 4x08: Once Upon a Time in Texas (Nov 2, 2009)
- Episode 4x09: Shadowboxing (Nov 9, 2009)
- Episode 4x10: Brother's Keeper (Nov 16, 2009)
- Episode 4x11: Thanksgiving (Nov 23, 2009)
- Episode 4x12: The Fifth Stage (Nov 30, 2009)
- Episode 4x14: Let It Bleed (Jan 4, 2010)
- Episode 4x15: Close to You (Jan 11, 2010)
- Episode 4x16: Pass/Fail (Jan 18, 2010)
- Episode 4x17: The Art of Deception (Jan 25, 2010)
- Episode 4x18: The Wall (Feb 1, 2010)
- Episode 4x19: Brave New World (Feb 8, 2010)
Guest cast, played by Zachary Quinto
- Episode 1x08: Seven Minutes to Midnight (Nov 13, 2006)
- Episode 1x09: Homecoming (Nov 20, 2006)
- Episode 1x10: Six Months Ago (Nov 27, 2006)
- Episode 1x11: Fallout (Dec 4, 2006)
- Episode 1x12: Godsend (Jan 22, 2007)
- Episode 1x13: The Fix (Jan 29, 2007)
- Episode 1x14: Distractions (Feb 5, 2007)
- Episode 1x15: Run! (Feb 12, 2007)
- Episode 1x16: Unexpected (Feb 19, 2007)
- Episode 1x18: Parasite (Mar 5, 2007)
- Episode 1x19: .07% (Apr 23, 2007)
- Episode 1x20: Five Years Gone (Apr 30, 2007)
- Episode 1x21: The Hard Part (May 7, 2007)
- Episode 1x22: Landslide (May 14, 2007)
- Episode 1x23: How to Stop an Exploding Man (May 21, 2007)