Names for Spooky Harper's Island-esque series

Hey Berries, I’m back, this time thinking of names for a series of novels.
So if you’ve seen [name]Harper[/name]'s Island, you’ll know what I’m talking about. If you haven’t, my series goes a little like this.
Basically, there’s a girl named [name]Jolene[/name] who disappears at 16 years of age from a small Irish town along the [name]East[/name] Coast. Six years later, she returns unannounced, a very different girl from when she disappeared. The old [name]Jolene[/name] was fun and bubbly, not very popular in school, but the secret crush of a lot of boys who shared her classes. When she returns, she is cool, distant, and demeaning, with a sensual air about her. With her return also comes a string of strange and horrific murders, who send the town, and the country, into a state of fear.
I’m looking for the names of just a few characters.
[name]Jolene[/name], who was born in 1989 to a very loosely religious Catholic household, is the middle child of 3, with an older brother born in 1986, and a younger sister born in 1993. Her mother is deceased, leaving the 3 children to their father.
I’m looking for a first, middle, Confirmation, nickname, and surname for [name]Jolene[/name] and her father and siblings. I’m pretty sure about [name]Jolene[/name] for the main characters’s name, but if you have any suggestions, feel free.
[name]Jolene[/name]'s boyfriend at the time she disappeared is now a member of the Gardai (the police). He was born in 1987, also to a more serious Catholic family. His parents are still married, and he has one sibling, a younger sister, who is 3 years younger than him (1990)
For them, I’m also looking for a first, middle, Confirmation, nickname, and surname.
I was thinking of an almost Vampiric feel for the names. Nothing too out there, but forgotten gems with a dark and sexy feeling to them. [name]Even[/name] just regular names that can have a hot nickname would be great.
Thanks guys, you’re a great help when I have to name some characters, hope you can help me with this one also!