Galaxina
Sonia the Hedgehog is Sonic's sister.
Sonia is a pink hedgehog. She is Sonic the hedgehog's sister and Manic the hedgehogs sister. She is 15 and turns 16 in episode 3. Her manic and Sonic are triplets. Hope that helps! :) ~Gracygoo
no, she isnt. But there is a pink hedgehog in sonic underground named sonia(sonics sister) so try not to get them mixed up
sonic unleashed
Sonic the hedgehog has no exact nationality.
Sonia the Hedgehog is Sonic's sister.
Sonic has a brother (Manic) and a sister (Sonia).
Sonia
"Manic the Hedgehog is a green anthropomorphic hedgehog from the Sonic Underground animated series. He is the brother of Sonic the Hedgehog and Sonia the Hedgehog, as well the son of Queen Aleena." So basically, Sonic's brother is Manic the Hedgehog, and Sonia the Hedgehog is Sonic's sister.
Yes he was the voice for all three hedgehogs (Sonic, Sonia, and manic) in Sonic Underground, also the voice for Sonic in Adventures of Sonic the Hedgehog and Sonic SatAM.
Yes, in Sonic Underground he has a sister named Sonia. In the show Sonic is a prince and has a brother named Manic.
yes her name is sonia the hedgehog
NO Omg no sonic is a hedgehog blaze is a cat o.o
sonia is sonic's sister in sonic underground you will find out about that and manic the hedgehog is sonic's brother
yes , he have shes name is sonia the hedgehog
He has a brother named Manic the Hedgehog and a sister named Sonia the Hedgehog.
The last answer was not that helpful. Sonic and/or Silver the Hedgehog are not related. In the show, Sonic Underground, Sonic's had only 1 brother and only 1 sister. His brother was Manic and his sister was Sonia. Sonic does not have any more siblings. Silver is just a hedgehog from the future, not Sonic's brother.