what is voldemort's protronus charm?

I don't think he needs a patronus. Dementors are like his friends..

Bellatrix... He's so secretly in love with her that his affection appares in the form of a patronus. That's why he doesn't use the patronus charm much, he's afraid someone might find out about his true feelings for his servant.

Jk jk, dark wizards and witches cannot conjure up patronus.

Not that I know of

Don't think he has one because (a) the Dementors kiss sucks your soul and I don't think he has to be honest and (b) you have to think of something happy to produce one and when was he happy even when he was Tom Riddle!

He doesn't have one. Or any of the other Deatheaters either. Snape is the only Deatheather that does.

I don't think he has one. He has control over the very beings that the Patronus Charm wards off.

He doesn't have one, but if he did, it would most likely be a snake.

He was never able to produce a patronas because he never had a happy memory.

He doesn't have one. To have a patronous you have to have a happy memory.

None of the death eaters can cast a patronus charm, except Snape, cause Snape's awesome

You people say none of the Death Eaters can cast a Patronus? Why the bloody hell not? They are grown wizards and surely have happy memories. Just because someone is a criminal, doesn't mean he doesn't have happy memories or enough magical skill to perform a Patronus Charm (which by the way could be performed by a whole bloody lot of 13-15 year olds during DA classes and thus can't be that difficult). Dear people, please stop picking on Death Eaters.

Yeah, Voldemort probably didn't have a Patronus, because he never needed one. But it'd probably be a snake.