Yes
Yes, Hornswoggle is a playable character on Smackdown vs. Raw 2011.
Yes, Sheamus is a playable character on Smackdown vs. Raw 2011.
No but he is a manager though
The Great Khali is not a character in Smackdown vs. Raw 2011, therefore he is not playable or unlockable.
The Hurricane is not available on Smackdown vs Raw 2011 for PlayStation 2, or any console for that matter.
Sorry ,No hornswoggle is not playable BUT he can be a manager as the same as Paul Bearer.
The Undertaker is the best playable character in the game (based on overall) if you don't count with created wrestlers.
Beat the "VS Undertaker" Road To WrestleMania. But Paul Bearer is only available as a manager, and not a playable character.
How to get Wade Barrett on smackdown vs raw 2011
According to Fan Axxess for Smackdown Vs Raw 2011, Wade Barrett and the other Nexus members planned DLC will be released in December sometime.
it is in dlc pack 2 for smackdown vs raw 2011
TheEnglishMaster