It seems like the cast of Sonic & Sega All-Stars Racing will never cease to expand. Not only has Sega tapped almost all of its memorable characters (including Shenmue's Ryo), but its roster is also starting to encompass games outside of the Sega realm, including Banjo-Kazooie, Avatars and Miis. Today, the Sega blog reveals Space Channel 5's Ulala and Crazy Taxi's BD Joe. Check 'em both out in the new trailer above.