Sonic Underground (1999–2000)

TV Series  -   -  Animation | Action | Adventure
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Sonic and his royal siblings seek to find their mother and defeat the tyrant, Robotnik.

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Series cast summary:
 Additional Voices / ... (40 episodes, 1999-2000)
 Dr. Robotnik (40 episodes, 1999-2000)
Gail Webster ...
 Queen Aleena (40 episodes, 1999-2000)
Peter Wilds ...
 Dingo (40 episodes, 1999-2000)
 Sonic (40 episodes, 1999-2000)
 Sonia / ... (40 episodes, 1999-2000)
Tyley Ross ...
 Manic (40 episodes, 1999-2000)
(40 episodes, 1999-2000)
Matt Hill ...
 Additional Voices / ... (40 episodes, 1999-2000)
 Additional Voices (40 episodes, 1999-2000)
Cusse Mankuma ...
 Additional Voices (40 episodes, 1999-2000)
Tabitha St. Germain ...
 Additional Voices (40 episodes, 1999-2000)
 Manic / ... (40 episodes, 1999-2000)
Brian Drummond ...
 Additional Voices / ... (40 episodes, 1999-2000)
Merrilyn Gann
(40 episodes, 1999-2000)
(40 episodes, 1999-2000)
 Additional Voices / ... (40 episodes, 1999-2000)
 Additional Voices / ... (40 episodes, 1999-2000)
(40 episodes, 1999-2000)
Kathleen Barr ...
 Additional Voices (40 episodes, 1999-2000)
Philippe Bozo ...
 Manic / ... (40 episodes, 1999-2000)
Alain Choquet ...
 Barnabé (40 episodes, 1999-2000)
Jacques Haurogné ...
 Sonic (40 episodes, 1999-2000)
Olivier Korol ...
 Sonic (40 episodes, 1999-2000)
Patricia Legrand ...
 Sonia (40 episodes, 1999-2000)
Gilbert Levy ...
 Louvois (40 episodes, 1999-2000)
Claude Lombard ...
 La reine Eléonore / ... (40 episodes, 1999-2000)
Eric Peter ...
 Dur-dur / ... (40 episodes, 1999-2000)
Patrice Schreider ...
 Manic (40 episodes, 1999-2000)


In this 3rd cartoon of Sonic the Hedgehog, Sonic and his two siblings, Manic and Sonia are the hit rock band, Sonic Undeground. But in reality they are the children of Queen Aleana, the queen of Mobius. Queen Aleana was abandoned from Mobius by Sonic's enemy, Dr. Robotnik who turned Mobius into a waste land. So now Sonic, Manic and Sonia must fight Dr. Robotnik and his two sidekicks, Sleet and Dingo and the SWAT Bots, with the aid of their metal medallions and bring peace to Mobius and find mother! Will the hedgehogs find their mother? Will they defeat Robotnik? The resistance begins on Sonic Undergroud! Written by Stuart Brewer

Plot Summary | Add Synopsis








Release Date:

30 August 1999 (USA)  »

Also Known As:

Sonic le rebelle  »

Company Credits

Show detailed on  »

Technical Specs


(40 episodes)

Sound Mix:


See  »

Did You Know?


This is not a sequel or spin-off of any of the other earlier "Sonic" programs, but a new series altogether. See more »


In the title sequence there is a number of clips with Queen Aleena Crying however one of these clips is played backwards; this is obvious as the tear goes UP her face. See more »


Dr. Ivo Robotnik: You have failed me again!
Sleet: But Sir I can explain.
Dr. Ivo Robotnik: SILENCE!
Sleet: But Sir.
Dr. Ivo Robotnik: What part of silence don't you understand?
See more »


Spun-off from Sonic the Hedgehog (1991) See more »

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User Reviews

Some episodes were okay, but for the most part this show was either boring, predictable, or stupid.
6 June 2011 | by (U.S.A.) – See all my reviews

"Sonic Underground" is the last Sonic cartoon to be produced by DIC Entertainment. And it was definitely the most farthest away from the Sonic games of any of the Sonic shows. What I mean by that is. "Adventures of Sonic the Hedgehog" was somewhat close to the games. It had a similar story, but everything was surreal and very Felix the Cat like. The second one "Sonic the Hedgehog" or "Sonic SatAM" was close to the games, but it made the story bigger, more complex, more interesting and it most likely took place after the games due to Robotnik being ruler of Mobius. The next one was a direct-to-video movie that was very close to the games, except the fact that it got some names wrong, like Planet Mobius being instead called Planet Freedom. But "Sonic Underground" has barely anything to do with the original Sonic story-line. For some reason now Sonic is a prince and has a brother and sister. Which is very weird if you ask me. Also the only familiar characters in the show are Sonic, Robotnik, Uncle Chuck, and Knuckles. Tails is gone, Sally's gone, Snively's gone, Antoine's gone, Bunnie's gone, Rotor's gone, Dulcy's gone, King Acorn's gone, Naugus's gone. And this version of Robotnik is really quite boring. The Robotnik in the Sonic games was an evil, goofy-looking, scientist bent on ruling Mobius. In Sonic SatAM and the Sonic comics he was the same, only more sinister, creepy-looking, menacing, and evil. In this one he has a very bad voice actor who doesn't even come close to the wonderful job Jim Cummings did in Sonic SatAM, and also his personality here is just boring.

Sonic's brother and sister are BOTH voiced by Jaleel White, and he is good as Sonic and Manic, but he sounds WAY too much like Steve Urkel for Sonia. There are plenty of voice actresses out there that could've done better than Jaleel White did as Sonia. There's Kath Soucie, Nancy Cartwright, Tress MacNeile, E.G. Daily, Candi Milo, Carolyn Lawrence, Christine Cavanaugh, and many more. I just don't understand why he had to play her too. And plus she is very annoying. She cares only only about her hair, her clothes, and her looks, and that all makes her a very annoying character. Also the story of them being separated from their mother is just..... not Sonic. And I still hate the idea of Sonic being a prince. However despite my complaints there are a few good things about the show:

  • While the lyrics were stupid, the songs they sang were actually kinda


  • The animation was very well-done. It looks better than it did in the

previous Sonc cartoons.

  • I liked Robotnik's henchman Sleet and Dingo. They weren't as good as

Snively, but they were a lot better than Scratch and Grounder.

  • Some episodes were really good. I really enjoyed "Getting to Know

You"; "Wedding Bell Blues"; "To Catch a Queen"; and "A Hedgehog's Home is Her Castle".

Overall this show isn't that good, but it does have some good points. I think instead of this they should've done a sequel to Sonic SatAM, which was in fact Ben Hurst's original plan for this show. Still this show was overall a disappointment, and was actually kind of an annoying show.

Rating: 4/10 "Mediocre"

2 of 3 people found this review helpful.  Was this review helpful to you?

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