Jett Plenilunium
Portrayed by Joseph Morgan
Klaus Promo
Biographical Information
Full name: Jett (Julian "Jules") Arthur Plenilunium
Born: 600 B.C
Age: 2000/20
Status: Alive
Nickname/s: Jules (family, good friends)
Wolf (Mason, Drew, Katherine & Cynthia)
Species: Werewolf
Occupation: Hunter
Part-time runner of the Italian Training Ground
Residence: Italian Training Ground
Allegiance: Light
Affiliation: Italian Training Ground
The old Hunter system
Nightshade family (Some)
Morgenstern family
Ravenscar family
Rosales family
Menshikov family
Plenilunium family
Wayland family
Parents: Celestia Plenilunium (mother)
Donovan Plenilunium (father)
Sibling/s: Stephan (paternal half)
Luke (paternal half)
Claire Plenilunium
Seraphina Plenilunium (adopted)
Significant other/s: Cecily Menshikov (fiancée)
Katherine (best friend)
Mason Winchester (best friend)
Drew Gilbert (best friend)
Physical Description
Gender: Male
Hair color: Dirty-blonde
Eye color: Dark brown, almost black
"This Hunting business is my life Cecily, I've been doing it for years. I'm never going to give it up because I find a strange sense of joy in it."
—Jett to Cecily

Jett Plenilunium is the 3rd oldest (after Stephen and Luke) of the Plenilunium siblings and runs the Italian Training Ground part-time when his parents are away on meetings. He's known the Morgenstern and Nightshade family his whole life and is most willing to help them compared to his sister who doesn't really remember it when the two families were living there.