Kai Winn a zealot
Well, but she was also a villain, too. Kira, one of the main characters, was a very devout member of the Bajoran religion, and her faith always seemed to be presented in a positive light.
I don't think religion has been particularly bashed in any Trek episode or film
I believe I’ve said before that TOS seemed more unabashedly Christian than the later shows. Part of that is just the time it was filmed in, but also Roddenberry didn’t start injecting his secular humanism until TNG.
I certainly don't think Trek is "demonic".
Lucien says “hi”!

