|Education and employment|
|Game||The Sims 4: Werewolves|
Greg (full name Greggorius Lunvik) is a NPC werewolf who made his first appearance in The Sims 4: Werewolves. He was featured briefly in trailers. He can be found wandering around Moonwood Mill. Sims have unique interactions with him, such as attempting to distract him, cry his name, or attempt to communicate to him. After he agrees to talk to the sim, the interaction to become a werewolf from Greg appears.
As shown in trailers, he turned Lux Demarco into a werewolf. He also turned Lou Howell when the young man taunted him whilst on a date with Celene López. Though he bit Celene as well, she chose to take an antidote and remain human.
According to many books and artefacts that can be found in Moonwood Mill, Greg is likely to have been a Mooncaster before becoming a werewolf. While still a Mooncaster, it's implied he had a familiar named "Brutus". Lily Zhu suspects that in spite of appearing to be a middle-aged man in human form, Greg is actually closer in age to Vladislaus Straud, though she has no proof of this.
When viewing the description of Avelina's Trusty Telescope, it's revealed that Avelina Lunvik was Greg's wife before she passed, and that Greg's full first name is Greggorius. When viewing the description of a rug in Build/Buy Mode, it is revealed that Greg's mother was a werewolf crafter named Pernilla Lunvik, who used the young Greg to test the durability of her handmade rugs.