there are 3 sonic shows other than sonic x. they are adventures of Sonic the Hedgehog, sonic SatAM, and Sonic Underground. You can see episodes of these shows on YouTube.com
There is not yet a cartoon after Sonic X. However, there is a cartoon being worked on called Sonic Boom(working title) that will air on Cartoon Network in the fall of 2014.
no but I think there is another cartoon with him
No, but its in Sonic X the cartoon.
The Sonic franchise is unpredictable, maybe there will be another series but not for a while.
Her name is Rouge.
He is not from a game just the cartoon series Sonic X. If you are talking about Darkspine Sonic, he is from Sonic and the Secret Rings
Sonic X
Well, Knuckles IS a cartoon/video game character, so he doesn't really have a definite age. But I think that he would at least have to be older than Sonic.
cause cartoon network didnt make/ doesnt own sonic x. 4 kids does.
about 12 years old in the sonic x shows or series
If you mean the cartoon show, then nothing has been anounced or made. If you mean the comic, then Sonic Universe has come out to replace it.
sometimes she is she only comes in very rarely