is an anime series based on the Sonic the Hedgehog video game series. It originally aired on Sundays from to with a total of , collectively known as "". In Japan, ("") initially went unaired on television, becoming direct-to-video releases, while were first broadcast on TV in France and parts of Asia before airing on UK/US television.

As part of Kids Station's 2020 programming lineup and as a tie-in promotion for the Sonic the Hedgehog film, the network broadcast the remaining episodes in 2020, marking the first time the episodes aired in any format on Japanese television.

For the English dub produced by 4Kids, which aired on Fox's Saturday morning block FoxBox, later renamed 4Kids TV, from to , were referred to as , each long, and were referred to as . However, the Saga Set DVD releases split the episodes into , each containing . The airdates for TV Tokyo are listed on the left, while the airdates for the 4Kids English dub are on the right. For , air dates for the Japanese run reflect the first date of Kids Station's broadcasts.

Series overview The "seasons" that compromise the episode list correspond to the series' international release outside of Japan. In Japan, the first 52 episodes of Sonic X aired continuously year-round with regular preemptions in place for specials and sporting events, not split into standard seasonal cycles. The last 26 episodes were initially released internationally before coming to Japan as a Tokyo Movie Online-exclusive series prior to its 2020 rebroadcast on Kids Station.

Episode list Season 1: The New World and Chaos Emerald Sagas (2003)

Season 2: The Chaos, Shadow, Egg Moon, Emerl, and Homebound Sagas (2003–04)

Season 3: The Metarex Saga (2005)

Theme songs Japan Opening "Sonic Drive" April 6, 2003 – March 28, 2004 and March 25, 2020 – April 30, 2020 Lyricist: Takeshi Aida Composer / Arranger: Cher Watanabe Singers: Hironobu Kageyama and Hideaki Takatori Episodes: 1–78

Endings

April 6, 2003 – June 29, 2003 Lyricist / Composer / Arranger: Kazuyoshi Baba Singers: Run&Gun Episodes: 1–13

July 6, 2003 – December 28, 2003 and March 25, 2020 – April 30, 2020 Lyricist: Shun Taguchi Composer / Arranger: Masataka Matsutoya Singer: Aya Hiroshige Episodes: 14–39 and 53–78 "T.O.P." January 4, 2004 – March 28, 2004 Lyricists / Singers: KP Composer / Arranger: URU Episodes: 40–52

United States Opening "Gotta Go Fast" August 23, 2003 – May 6, 2006 By Norman Grossfeld and Russell Velazquez Episodes: 1–78

Ending "Gotta Go Fast" (shortened version) August 23, 2003 – May 6, 2006 By Norman Grossfeld and Russell Velazquez

PAL regions Opening "Sonic X" August 23, 2003 – May 6, 2006 Episodes: 1–78

For the ending, PAL region broadcasts use the same melody of the American ending theme, albeit instrumental and with an adjusted pitch and speed. However, UK broadcasts retain the vocals.

South Korea South Korea has the same melody of the Japanese opening theme and the first ending theme, with the lyrics translated into Korean.

Italy "Sonic" (Episodes 1–78)

France The French dubbing has the same melody of the Japanese opening theme, but it is adapted into French lyrics instead. Endings are instrumental.

Home video releases Japan A total of 13 DVD and VHS volume compilations was released by Victor Entertainment and Universal Music. "Hi-Spec" editions of have also been released, which include bonus features and 5.1 audio. VHS/DVD Name Episodes Release Date1–56–910–1314–1718–2122–2526–2930–3334–3637–3940–4344–4748–52

United States VHS/DVD Funimation released episodes 1–52 in 10 single-disc releases, as well as part of the series in VHS:

VHS/DVD nameEpisodesRelease dateNoteSonic X: Vol. 1: A Super Sonic Hero 1. "Chaos Control Freaks" 2. "Sonic to the Rescue" 3. "Missile Wrist Rampage" 27. "Pure Chaos"A Super Sonic Hero was also released on the Game Boy Advance Video, but only with the first two episodes.Sonic X: Vol. 2: The Chaos Factor 4. "Chaos Emerald Chaos" 5. "Cracking Knuckles" 6. "Techno-Teacher" 7. "Party Hardly"Sonic X: Vol. 3: Satellite Swindle 8. "Satellite Swindle" 9. "The Last Resort" 10. "Unfair Ball" 11. "Fly Spy"Sonic X: Vol. 4: Beating Eggman 12. "Beating Eggman (Part 1)" 13. "Beating Eggman (Part 2)" 14. "That's What Friends are For" 15. "Skirmish in the Sky" 16. "Depths of Danger"Sonic X: Vol. 5: Sonic's Scream Test 17. "The Adventures of Knuckles and Hawk" 18. "The Dam Scam" 19. "Sonic's Scream Test" 20. "Cruise Blues" 21. "Fast Friends"It is the last Sonic the Hedgehog content of any media to be released on VHS.Sonic X: Vol. 6: Countdown to Chaos 22. "Little Chaos Lost" 23. "Emerald Anniversary" 24. "How to Catch a Hedgehog" 25. "A Dastardly Deed" 26. "Countdown to Chaos"Sonic X: Vol. 7: Revenge of the Robot 28. "A Chaotic Day" 29. "A Robot Rebels" 30. "Heads Up, Tails!" 31. "Revenge of the Robot" 32. "Flood Fight"Episode 27 isn't included due to have been part of Volume 1.Sonic X: Vol. 8: Project Shadow 33. "Project: Shadow" 34. "Shadow Knows" 35. "Sonic's Big Break" 36. "Shadow World" 37. "Robotnik's Revenge" 38. "Showdown in Space"Sonic X: Vol. 9: Into the Darkness 39. "Defective Detectives" 40. "Sunblock Solution" 41. "Eggman for President" 42. "A Date to Forget" 43. "Mean Machines" 44. "Sewer Search"Sonic X: Vol. 10: The Beginning of the End 45. "Prize Fight" 46. "A Wild Win" 47. "Map of Mayhem" 48. "The Volcanic Venture" 49. "The Beginning of the End" 50. "Running out of Time" 51. "Friends 'Till the End" 52. "A New Start"

The episodes were re-released in "Saga" sets: DVD Name Episodes Release DateSonic X: New World Saga 1. "Chaos Control Freaks" 2. "Sonic to the Rescue" 3. "Missile Wrist Rampage" 4. "Chaos Emerald Chaos" 5. "Cracking Knuckles" 6. "Techno-Teacher" 7. "Party Hardly" 8. "Satellite Swindle" 9. "The Last Resort" 10. "Unfair Ball" 11. "Fly Spy" 12. "Beating Eggman (Part 1)" 13. "Beating Eggman (Part 2)"Sonic X: Chaos Emerald Chaos 14. "That's What Friends are For" 15. "Skirmish in the Sky" 16. "Depths of Danger" 17. "The Adventures of Knuckles and Hawk" 18. "The Dam Scam" 19. "Sonic's Scream Test" 20. "Cruise Blues" 21. "Fast Friends" 22. "Little Chaos Lost" 23. "Emerald Anniversary" 24. "How to Catch a Hedgehog" 25. "A Dastardly Deed" 26. "Countdown to Chaos"Sonic X: Chaos & Shadow Sagas 27. "Pure Chaos" 28. "A Chaotic Day" 29. "A Robot Rebels" 30. "Heads Up, Tails!" 31. "Revenge of the Robot" 32. "Flood Fight" 33. "Project: Shadow" 34. "Shadow Knows" 35. "Sonic's Big Break" 36. "Shadow World" 37. "Robotnik's Revenge" 38. "Showdown in Space"Sonic X: The Egg Moon, Emerl & Homebound Sagas 39. "Defective Detectives" 40. "Sunblock Solution" 41. "Eggman for President" 42. "A Date to Forget" 43. "Mean Machines" 44. "Sewer Search" 45. "Prize Fight" 46. "A Wild Win" 47. "Map of Mayhem" 48. "The Volcanic Venture" 49. "The Beginning of the End" 50. "Running out of Time" 51. "Friends 'Till the End" 52. "A New Start"

Episodes 53–78 made their way to the U.S. in two 13-episode box sets: DVD Name Episodes Release DateSonic X: The Complete 5th Season 53. "A Cosmic Call" 54. "Cosmic Crisis" 55. "H2 Whoa" 56. "An Enemy in Need" 57. "A Chilling Discovery" 58. "Desperately Seeking Sonic" 59. "Galactic Gumshoes" 60. "Trick Sand" 61. "Ship of Doom" 62. "An Underground Odyssey" 63. "Station Break-In" 64. "A Metarex Melee" 65. "Mission: Match-Up"Sonic X: So Long, Sonic 66. "Clash in the Cloister" 67. "Teasing Time/Testing Time" 68. "A Revolutionary Tale" 69. "The Planet of Misfortune" 70. "Terror on the Typhoon" 71. "Hedgehog Hunt" 72. "Zelkova Strikes Back" 73. "The Cosmo Conspiracy" 74. "Eye Spy" 75. "Agent of Mischief" 76. "The Light in the Darkness" 77. "A Fearless Friend" 78. "So Long, Sonic"

DVD Name Episodes Release DateSonic X: Collection 1 1–52Sonic X: Collection 2 53–78

Blu-ray Blu-ray Name Episodes Release DateSonic X: The Complete Series English Dub 1–78Sonic X: The Complete Series Japanese Sub 1–78

United Kingdom UK DVD

Warner Home Video and Jetix Consumer Products released only 4 volumes with episodes from 1 to 8.

Volume 1 – Episode 1–2 ("Chaos Control Freaks" and "Sonic to the Rescue") Volume 2 – Episode 3–4 ("Missile Wrist Rampage" and "Chaos Emerald Chaos") Volume 3 – Episode 5–6 ("Cracking Knuckles" and "Techno-Teacher") Volume 4 – Episode 7–8 ("Party Hardly" and "Satellite Swindle")

Australia In Australia, 17 volumes of the first series were released by MRA Entertainment in 2005–2006, which featured three episodes per disc.

Notes

References