No, townies like those only live in the neighborhoods they were placed in, as they were created by Maxis to be in those towns.
You'll have to place them yourself if you want them in your town. c:

Leaders of the supernatural groups will spawn on their own, however, just not the pre-made sims like you mentioned.

I think it's Butterfly 33 which you can snag here http://www.butterflysims.com/download/bencandy.php?fid=54&id=748 , no registration required 
If that's not it just give a shout back and I'll look again , I seem to remember either a Raon or an XMsims hair that looked pretty similar too.

Hi,

I hope this is what you are looking for I found it in WCIF at MTS : http://modthesims.info/t/506878

http://www.4shared.com/get/kVolKGV4/XxBrokenEmoAngelxX_s_Personal_.html

That site has been mostly inaccessible for over a year now it seems. I think it was about March of '14 when the flood of wcif's for her free stuff started to appear. Since peggyzone.com never seems to load anymore ( and ya , I hear ya on the browsers, for awhile some could get in , some couldn't depending on the browser, adblock, whether they'd figured out her numbering system... no I'm kidding no one was ever able to do that  ) you can find most of her pay stuff http://svt.paysites.mustbedestroyed.org:8080/booty/ts2/peggy/ or http://svt.paysites.mustbedestroyed.org:8080/booty/ts3/peggy/ depending on which game you want it for.

A bunch of her free stuff is also now available at SimsCave , like here http://simscave.mustbedestroyed.org/index.php?topic=31813.0 and numerous other links. Googling wcif Peggy Sims 2 ( or 3) will lead you to tons of links like this one I posted in over a year ago at MTS http://modthesims.info/t/521735 If there is anything you're looking for ( I pretty much just have her female hair) and can't find just give a shout and I'll upload it to mediafire for you if I have it. That only applies to Sims 2 unfortunately as I merge my packages for 3.