• Starring: Jack Coleman (Noah), Greg Grunberg (Matt), James Kyson Lee (Ando), Masi Oka (Hiro), Hayden Panettiere (Claire), Adrian Pasdar (Nathan), Sendhil Ramamurthy (Mohinder), Dania Ramirez (Maya), Milo Ventimiglia (Peter)
• Guest Starring: Cristine Rose (Angela Petrelli), Ashley Crow (Sandra Bennet), Nicholas D'Agosto (West Rosen), David Anders (Takezo Kensei), Barry Shabaka Henley (Detective Bryan Fuller), Holt McCallany (Ricky), Eriko Tamura (Yaeko), Shalim Ortiz (Alejandro Herrera), Lyndsy Fonseca (April), Dianna Agron (Debbie Marshall), Lauren Stamile (Ms. Gerber), Brian Kimmet (Copy Kingdom Manager), Adair Tishler (Molly Walker)
• With: George Takei (Kaito Nakamura)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Dominic Keating (Will), Adetokumboh M'Cormack (Tuko), Randall Bentley (Lyle Bennet), Liisa Cohen (Woman), Mark Colson (Mr. Zern), Kiko Kiko (Old Villager), Milos Milicevic (Hulk), Rene L. Moreno (Coyote), Sara Soloman (Martha), Casey Washington (Man)
• Written By: Tim Kring
• Directed By: Greg Beeman

• Starring: Jack Coleman (Noah), Greg Grunberg (Matt), James Kyson Lee (Ando), Masi Oka (Hiro), Hayden Panettiere (Claire), Adrian Pasdar (Nathan), Sendhil Ramamurthy (Mohinder), Dania Ramirez (Maya), Milo Ventimiglia (Peter)
• Guest Starring: Cristine Rose (Angela Petrelli), Ashley Crow (Sandra Bennet), David Anders (Takezo Kensei), Jimmy Jean-Louis (The Haitian), Nicholas D'Agosto (West Rosen), Barry Shabaka Henley (Detective Bryan Fuller), Holt McCallany (Ricky), Ivonne Coll (Nidia), Eriko (Yaeko), Shalim Ortiz (Alejandro Herrera), Dianna Agron (Debbie Marshall), Adair Tishler (Molly Walker), Katie Carr (Caitlin), Yareli Arizmendi (Healer)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Dominic Keating (Will), Adetokumboh M'Cormack (Tuko), Sara Soloman (Martha), Mark Colson (Mr. Zern), Natalie Amenula (Healer's Daugher), Kurando Mitsutake (White Beard), Kenji Nakamura (Brigand), Darren Keefe (Tire Iron)
• Written By: Michael Green
• Directed By: Allan Arkush

• Starring: Jack Coleman (Noah), Noah Gray-Cabey (Micah), Greg Grunberg (Matt), Ali Larter (Niki), James Kyson Lee (Ando), Masi Oka (Hiro), Hayden Panettiere (Claire), Zachary Quinto (Sylar), Sendhil Ramamurthy (Mohinder), Dania Ramirez (Maya), Milo Ventimiglia (Peter)
• Guest Starring: David Anders (Takezo Kensei), Nicholas D'Agosto (West Rosen), Holt McCallany (Ricky), Eriko (Yaeko), Shalim Ortiz (Alejandro Herrera), Rachel Kimsey (Michelle), Katie Carr (Caitlin), Dianna Agron (Debbie Marshall), Adair Tishler (Molly Walker), TW Leshner (Derek), Hector Luis Bustamante (Garcia)
• With: Nichelle Nichols (Nana Dawson)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Dominic Keating (Will), Adetokumboh M'Cormack (Tuko), Mark Colson (Mr. Zern), Roberto Medina (Hernandez), Steven C. Gibbons (Guard #1), Kevin Kearns (Guard #2), Tohoru Masamune (Mr. Egami), Marisa Tayui (Geisha), Julie Costello (Hot Girl #1), Shawnie Costello (Hot Girl #2)
• Written By: J.J. Philbin
• Directed By: Paul Edwards

• Starring: Jack Coleman (Noah), Dana Davis (Monica), Noah Gray-Cabey (Micah), Greg Grunberg (Matt), Hayden Panettiere (Claire), Adrian Pasdar (Nathan), Zachary Quinto (Sylar), Sendhil Ramamurthy (Mohinder), Dania Ramirez (Maya)
• Guest Starring: Cristine Rose (Angela Petrelli), Ashley Crow (Sandra Bennet), Jimmy Jean-Louis (The Haitian), Nicholas D'Agosto (West Rosen), Barry Shabaka Henley (Detective Bryan Fuller), Shalim Ortiz (Alejandro Herrera), Mark Christopher Lawrence (Mr. LaMarr), Jeanette Brox (Camille), Adair Tishler (Molly Walker), Janel Parrish (May), TW Leshner (Derek)
• And: Nichelle Nichols (Nana Dawson)
• Co-Starring: Randall Bentley (Lyle Bennet), Carlon Jeffery (Damon Dawson), Jackson Wurth (Monty Petrelli), Justin Evans (Simon Petrelli), Countrified Wedman (Scary Guy), Taira Soo (Teacher), Chris Oliver (Cooking Show Host)
• Written By: Tim Kring
• Directed By: Adam Kane

• Starring: David Anders (Kensei), Kristen Bell (Elle), Jack Coleman (Noah), Dana Davis (Monica), Noah Gray-Cabey (Micah), Greg Grunberg (Matt), Ali Larter (Niki), James Kyson Lee (Ando), Masi Oka (Hiro), Adrian Pasdar (Nathan), Sendhil Ramamurthy (Mohinder), Milo Ventimiglia (Peter)
• Guest Starring: Jimmy Jean-Louis (The Haitian), Alan Blumenfeld (Maury Parkman), Holt McCallany (Ricky), Eriko (Yaeko), Lisa Lackey (Janice Parkman), Katie Carr (Caitlin), Jeanette Brox (Camille), Adair Tishler (Molly Walker)
• With: Nichelle Nichols (Nana Dawson)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Dominic Keating (Will), Adetokumboh M'Cormack (Tuko), Jonathan T. Floyd (Officer Landry), Mio Takada (Curator), James Storm (Fitzpatrick), Laivan Greene (Braces), Christopher Guyton (Guard)
• Written By: Joy Blake & Melissa Blake
• Directed By: Lesli Glatter

• Starring: David Anders (Kensei), Jack Coleman (Noah), Dana Davis (Monica), Ali Larter (Niki), James Kyson Lee (Ando), Masi Oka (Hiro), Hayden Panettiere (Claire), Zachary Quinto (Sylar), Sendhil Ramamurthy (Mohinder), Dania Ramirez (Maya), Milo Ventimiglia (Peter)
• Guest Starring: Jimmy Jean-Louis (The Haitian), Cary-Hiroyuki Tagawa (The Swordsmith), Nicholas D'Agosto (West Rosen), Eriko (Yaeko), Shalim Ortiz (Alejandro Herrera), Elya Baskin (Ivan Spector), Dianna Argon (Debbie Marshall), Janel Parrish (May), Katie Carr (Caitlin), Adair Tishler (Molly Walker)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Kurando Mitsutake (White Beard), Mio Takada (Curator), Rachelle Jacoby (Cheerleader Hopeful #1), Ilene Perez (Cheerleader Hopeful #2), Irina Maleeva (Ivan's Wife), Nicole Clifford (Cheerleader Recruit), Roberto Sanchez (Police Officer), Beau Dremann (Police Officer #2), Darryl Chan (White Beard's Guard), Shane Woodson (Cowboy Boots)
• Written By: Adam Armus & Kay Foster
• Directed By: Jeannot Szwarc
• Note: In Memory of Tim Susco

• Starring: David Anders (Kensei), Jack Coleman (Noah), Greg Grunberg (Matt), Ali Larter (Niki), James Kyson Lee (Ando), Masi Oka (Hiro), Hayden Panettiere (Claire), Adrian Pasdar (Nathan), Sendhil Ramamurthy (Mohinder), Milo Ventimiglia (Peter)
• Special Guest Star: Leonard Roberts (D.L. Hawkins)
• Guest Starring: Cristine Rose (Angela Petrelli), Ashley Crow (Sandra Bennet), Nicholas D'Agosto (West Rosen), Jimmy Jean-Louis (The Haitian), Eriko (Yaeko), Cary-Hiroyuki Tagawa (The Swordsmith), Alan Blumenfeld (Maury Parkman), Katie Carr (Caitlin), Mark Harelik (Howard Lemay), Adair Tishler (Molly Walker)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Randall Bentley (Lyle Bennet), Kenji Nakamura (Camp Supervisor), Joe Bucaro (Stunt Hazmat #1), Timon Kyle Durrett (Hazmat Guy)
• Written By: Aron Eli Coleite
• Directed By: Daniel Attias

• Starring: David Anders (Adam), Kristen Bell (Elle), Dana Davis (Monica), Noah Gray-Cabey (Micah), Ali Larter (Niki), Adrian Pasdar (Nathan), Sendhil Ramamurthy (Mohinder), Dania Ramirez (Maya), Milo Ventimiglia (Peter)
• Special Guest Star: Leonard Roberts (D.L. Hawkins)
• Guest Starring: Cristine Rose (Angela Petrelli), Jimmy Jean-Louis (The Haitian), Shalim Ortiz (Alejandro Herrera)
• With: Nichelle Nichols (Nana Dawson)
• With: Rena Sofer (Heidi Petrelli)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Foz McDermott (Bouncer), Christine Avila (Mother Superior), Carlon Jeffery (Damon Dawson), Kiernan Shipka (6-Year-Old Girl), Jason Foster (Skanky Guy), Sabrina Perez (Gloria), Adrian Bellani (Gilberto), Emerson Brooks (Police Officer), Jose Rosario (Sheriff), Chris Hendrie (Dr. Brooks), Jessica Anne Bogart (Hysterical Mom), Patrick Faucette (Fireman)
• Written By: Tim Kring
• Directed By: Greg Beeman

• Starring: David Anders (Adam), Kristen Bell (Elle), Jack Coleman (Noah), Greg Grunberg (Matt), James Kyson Lee (Ando), Masi Oka (Hiro), Hayden Panettiere (Claire), Sendhil Ramamurthy (Mohinder)
• Guest Starring: Cristine Rose (Angela Petrelli), Ashley Crow (Sandra Bennet), Nicholas D'Agosto (West Rosen), Barry Shabaka Henley (Detective Bryan Fuller), Adair Tishler (Molly Walker), Saemi Nakamura (Kimiko Nakamura)
• With: George Takei (Kaito Nakamura)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Randall Bentley (Lyle Bennet), Tami-Adrian George (Coach Randolph), Sekai Murashige (Young Hiro), Tak Kubota (Old Monk), Rikio Nakashita (Flashback Monk), Reverend Norian Ito (Chanting Monk #1), Reverend Kenjun Kawawata (Chanting Monk #2)
• Written By: Joe Pokaski
• Directed By: Greg Yaitanes

• Starring: David Anders (Adam), Kristen Bell (Elle), Jack Coleman (Noah), Dana Davis (Monica), Noah Gray-Cabey (Micah), Ali Larter (Niki), James Kyson Lee (Ando), Masi Oka (Hiro), Hayden Panettiere (Claire), Zachary Quinto (Sylar), Sendhil Ramamurthy (Mohinder), Dania Ramirez (Maya), Milo Ventimiglia (Peter)
• Guest Starring: Joanna Cassidy (Victoria Pratt), Ashley Crow (Sandra Bennet), Nicholas D'Agosto (West Rosen), Shalim Ortiz (Alejandro Herrera), Jaime Ray Newman (Young Victoria), Eijiro Ozaki (Young Kaito Nakamura), Adair Tishler (Molly Walker), Cory Hardrict (Gang Leader), Katie Carr (Caitlin)
• With: Nichelle Nichols (Nana Dawson)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Randall Bentley (Lyle Bennet), Carlon Jeffery (Damon Dawson), Jermaine Jackson (Gang Member #1), Lateef Crowder (Gang Member #2), Joe Bucaro (Stunt Hazmat #1), Timon Kyle Durrett (Hazmat Guy)
• Written By: Jesse Alexander
• Directed By: Adam Kane

• Starring: David Anders (Adam), Kristen Bell (Elle), Jack Coleman (Noah), Dana Davis (Monica), Noah Gray-Cabey (Micah), Greg Grunberg (Matt), Ali Larter (Niki), James Kyson Lee (Ando), Masi Oka (Hiro), Hayden Panettiere (Claire), Adrian Pasdar (Nathan), Zachary Quinto (Sylar), Sendhil Ramamurthy (Mohinder), Dania Ramirez (Maya), Milo Ventimiglia (Peter)
• Guest Starring: Cristine Rose (Angela Petrelli), Ashley Crow (Sandra Bennet), Nicholas D'Agosto (West Rosen), Adair Tishler (Molly Walker), Cory Hardrict (Gang Leader)
• And: Stephen Tobolowsky (Bob Bishop)
• Co-Starring: Randall Bentley (Lyle Bennet)
• Written By: Jeph Loeb
• Directed By: Allan Arkush