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Sonic Underground 

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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:
Maurice LaMarche ...  Additional Voices / ... 40 episodes, 1999
Garry Chalk ...  Dr. Robotnik 40 episodes, 1999
Gail Webster Gail Webster ...  Queen Aleena 40 episodes, 1999
Peter Wilds Peter Wilds ...  Dingo 40 episodes, 1999
Sam Vincent ...  Sonic 40 episodes, 1999
Stevie Vallance Stevie Vallance ...  Sonia / ... 40 episodes, 1999
Tyley Ross Tyley Ross ...  Manic 40 episodes, 1999
Terry Klassen 40 episodes, 1999
Matt Hill ...  Additional Voices / ... 40 episodes, 1999
Blu Mankuma ...  Additional Voices 40 episodes, 1999
Cusse Mankuma Cusse Mankuma ...  Additional Voices 40 episodes, 1999
Tabitha St. Germain ...  Additional Voices 40 episodes, 1999
Jaleel White ...  Manic / ... 40 episodes, 1999
Brian Drummond ...  Additional Voices / ... 40 episodes, 1999
Merrilyn Gann 40 episodes, 1999
Lee Tockar 40 episodes, 1999
Ian James Corlett ...  Additional Voices / ... 40 episodes, 1999
Philip Maurice Hayes ...  Additional Voices / ... 40 episodes, 1999
Adrian G. Griffiths Adrian G. Griffiths 40 episodes, 1999
Kathleen Barr Kathleen Barr ...  Additional Voices 40 episodes, 1999


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


TV-Y7 | See all certifications »

Parents Guide:

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France | USA


English | French

Release Date:

30 August 1999 (USA) See more »

Also Known As:

Sonic le rebelle See more »

Company Credits

Show more on IMDbPro »

Technical Specs


(40 episodes)

Sound Mix:



See full technical specs »

Did You Know?


Unlike the diverse Sonic the Hedgehog (1993), Sonic Underground had elements reduced, like Garry Chalk does the voice for Dr. Robotnik instead of Jim Cummings since it was considered too malevolently scary, shots of roboticism were cut to minimum, all female animal characters were given clothes since their bodies were more humanly shaped compared to male animal characters, and the potential relationships, which focused on Sonic and Sally on Sonic the Hedgehog, are reduced to minimize romantic interactions. Similar to the second season of Sonic the Hedgehog, elements were devoted to humor and show tones, while darker elements and futuristic violence were minimizes entirely. 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 »


Sleet: Out of my way
[Then Sleet pushes two Swatbots aside and then sees Knuckles]
Sleet: But you. What are you doing here?
Knuckles: I need Robotnik's help to find the chaos emerald. TAKE ME TO ROBOTNIK!
See more »


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

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User Reviews

Great Cartoon along with the ABC version!
27 October 2004 | by SonicStuartSee all my reviews

Sonic Underground was a little bit like the SatAM series but not a whole lot because all the other freedom fighters from the SatAM are left out and so is Snively and the power rings. But at least this series still has the whole robotisizing thing. Another thing is that Sonic's Uncle Chuck was only in the first episode and they never see each other again. Another thing that was different was the way the SwatBots looked in this series. Sonic Underground is the 3rd Sonic cartoon that came out 2 years later after Sonic the Hedgehog (SatAM) was canceled again off of USA Network showing reruns.

In this cartoon, Sonic and his siblings Manic (Sonic's brother) and Sonia (Sonic's sister) are the hit rock 'n' roll band on Mobius called the Sonic Underground but in reality they are the children of the lost Queen Aleena, the queen of Mobius. Now Sonic, Manic and Sonia must fight Dr. Robotnik and save the planet Mobius and find their mother with the aid of their medallions. I missed Tails and the other freedom fighters from the 1993 ABC Series but at least I was glad that Knuckles the Echidna was in this series because I think Knuckles is one of my favorite characters in the whole Sonic the Hedgehog franchise along with Sonic! Plus I thought Manic and Cyrus were cool characters also! Especially Manic because Manic has that lay back and be cool sort of attitude plus I think he looks cool!

The only one thing I didn't like about this show was Gary Chalk doing the voice of Dr. Robotnik because he didn't make Dr. Robotnik sound scary and evil! I think Jim Cummings should have done this Sonic cartoon just like he did the voice of Dr. Robotnik from the ABC SatAM version. Or I think Mark Hamill would have done a good job at doing the voice of Dr. Robotnik since he is pretty good at doing creepy villain voices. But the only thing I liked about Dr. Robotnik in this series was that he looked exactly the same as he did in the SatAM Sonic cartoon! Also I liked Robotnik's bounty hunters, Sleet and Dingo. I liked Sleet better than Dingo because I thought Sleet was cool looking and I thought Maurice LaMarche was excellent to provide the voice of Sleet! Dingo I thought was stupid and funny. I didn't think Dingo was stupid as in I didn't like him he is just stupid as in not very smart as Sleet.

Why did this show have to last only one season? I think this show deserved more than one season! Just like the Sonic SatAM cartoon got to have more than one season! I first discovered this series when I was checking what was on TV the next day and I saw Sonic Underground on there and I asked myself, "Since when did Sonic come up with another cartoon?". At first I thought it would be a series that picked up where Sonic the Hedgehog (SatAM) left off but instead it sort of looked like a spin-off or a prequel. This series was pretty good along with Sonic the Hedgehog (SatAM) and Sonic X! This series also has great animation!

User Rating: 10/10


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