Alis and Rag Rappy, along with a few other Sega characters are possible DLC candidates for Sonic & Sega All-Stars Racing
Transformed. Each character has a petition you can sign:
http://forums.sega.com/showthread.php?4 ... become-DLC
I strongly encourage everyone to vote for Alis (or possibly Vectorman). Spreading the word to your friends could help too.