If you're new to Supernatural and want to be scared, watch the first few seasons. You should do that anyway to catch up if you're thinking of becoming familiar with the series. It is a highly addictive TV show that can absolutely be watched as a marathon - I once sat through the entire season 2 DVD in two days, even though I had already seen all the episodes. Yeah, I didn't have much to do on those two days.
Some episodes are scarier than others, but for the most part the show balances the scary with humor. There is not much gore. It is shown on regular TV show they can't show but so much blood and gore. The show is so very great. The storylines are well written (especially seasons 1-5) you will fall in love with the characters (even the evil ones) and it has one helluva story arc. Watch the first few episodes. If those don't scare you too bad then you should be fine with the others.
Depends on the episode.
nah
I'm 13 and i really like Sherlock and Doctor Who, and I know of the fandom "SuperWhoLock" (Supernatural, Doctor Who and Sherlock) A lot of my friends are in it and say i would really like Supernatural, but some say that it's really scary/violent/bloody. I'm ok with some blood and violence, but sometimes too much can freak me out a little. Also scary parts are ok sometimes but it's kinda weird because some jumpscares don't make me react at all, while some make me almost scream. I would really like to start watching Supernatural, but i'm a little nervous. Please help!