It’s senior year for our favorite “Teen Wolf” characters. But instead of Scott (Tyler Posey), Stiles (Dylan O’Brien), Lydia (Holland Roden) and the rest of the gang celebrating their last year of high school with smiles, laughter and the talk of graduation, the supernatural students will spend their final days at Beacon Hills just trying to survive. And we don’t mean survive their final exams.

Season 5, which is set to premiere on Monday, June 29, will feature new villains called Dread Doctors that are set to wreak havoc on the supernatural city. “They are going to get in Scott's way quite a bit,” executive producer Jeff Davis told E! Online, explaining that the Dread Doctors are “scientists who worship the supernatural.”

“They have a very specific agenda in Beacon Hills,” he added, hinting at the forthcoming, and reportedly "gory", storyline.

But just how frightening are the Season 5 antiheroes? Well, “Teen Wolf” director and executive producer Russell Mulcahy teased during the 2015 ATX Television Festival in June that the villains are so terrifying they’ll “send shivers down your spine.”

“This season is really about dread. The dread of the villains. The dread of the unknown,” he revealed.

Roden bolstered the EP’s statement when she explained to E! Online that the Dread Doctors might be the show’s most frightening baddies to date. "It's probably the most human villains we've ever had and I think it's the creepiest because they're so human-like," she stated.

And she wasn’t the only cast member to be spooked by the gas mask-wearing docs! Posey revealed he is also afraid of the Season 5 villains. “They’re very scary,” he admitted to TVLine. “When I first read this season, I was so excited about these villains -- more excited than I have been about any villains before. They’ve got powers we’ve never seen before, they’re tall as hell and they’re awesome.”

Davis then revealed to E! Online that the dangerous Dread Doctors were inspired by a variety of chill-inducing things, specifically from World War II.

"There are a variety of influences on these guys, going back from German experiments on humans in World War II to the steampunk asthetic, the gas masks, and going back to Plague Doctors during the Bubonic plague," Davis explained. "We drew on all those things, but this is actually one of the times were we did our own creating.”

“Teen Wolf” will air its Season 5 premiere on Monday, June 29, at 10 p.m. EDT on MTV.