No, people who believe that fairy tales are true -- and who blame mental illnesses on demons -- are simply so unintelligent that they make their own lives a living hell.
No atheist has ever been possessed by anything. It requires a special brand of idiot to think that way.
But let's try to take this seriously : the Devil takes pleasure in offending God, what would be the point of tormenting a guy who doesn't believe in God in the first place ?
The Devil would rejoice in making a believer renounce his faith, he would take pleasure in instilling doubts in the faith of a strong believer, like a priest.
The Devil tormented CHRIST in the desert, not just some random dude.
The Devil wants people to renounce their faith, he wants to offend God by luring his followers away from him.
So us atheists are actually very safe: we are already goin' to hell anyway, so Satan doesn't give a sh!t about possessing us.
We are not a fun challenge to Him.
You on the other hand should watch out and go waste your time at church more often if you believe this crap
As I said, atheists are possessed to torment the saints. As my brother and I became religious my once occasional church going father declared himself an atheist. After that he openly mocked religion and blasphemed religious icons. I have no doubt that his demeanor was possession to torment us.