Ex-Roman Catholic.
And right now I suppose I am a Theist, pending any scientific determination of a quantum multiverse and how that applies to the strong and weak anthropomorphic principle.
Essentialy, the physical constants of the universe, namely things like the ratio between the attraction of gravity, and the charge of the proton are way to finely balanced and seem biased towards "life as we know it". If these ratios were different, even by a thousandth of a percent, no fusion, no stars, no supernovae producing heavier elements, no planets etc. Tweak them the tiniest bit and you have a cold dead universe of Hydrogen devoid of any stars or galaxies, or the other way, and stars burn at a ferocious rate, lasting a few thousand years, or even further, and everything just falls in on itself into one supermassive black hole before anything interesting even got started.
It almost regrettably puts me in league with Intelligent Designers, however we differ greatly in that I think they're looking a few billion years too early.
However, if scientific experiments bear out that there is an infinite multiverse, each with any number of physical constants and laws, we're only here because we happen to be in a universe with such laws as allows stars, planets, and life. Buy enough tickets, and
someone wins the lottery. Although I am not so arrogant to let that push me any further than agnosticism.
And no, I'm not joking about any of the above.
It's what I believe.