Atheism

Atheism is a belief that there are no such things as gods or supernatural powers. The person who holds such a belief may either be a good or a bad person, though this may depend on how they define what is "good" and "bad" in their own personal worldview.

Empath: The Luckiest Smurf stories
In the EMPATH: The Luckiest Smurf story series, Hefty Smurf considers himself an atheist.