In the build up to the season 4 premiere of Grimm, which is three weeks away, NBC has shared a promotional photo gallery for the first episode, which is titled "Thanks for the Memories."

In one photo, Trubel is giving Nick a very disconcerting look as he appears to be talking to someone.

Another picture shows Juliette as she realizes that someone has rummaged through her home. She is wearing a lavender cocktail dress and black strappy heels, which suggests that the incident may have occured while she was spending the night out.

In another photo, she is wearing the same outfit while she is talking to Trubel, who has a cut on her head.

See all of the pics here.

A tough new deputy will also come to town when Season 4 kicks off. According to TVLine, "Franklin & Bash" star Toni Trucks will play Deputy Janelle Farris, a strong county lawwoman who seeks Nick and Hank's help in order to solve a highway-crime scene that seems a bit strange.

The "Grimm" official Twitter account also hinted that Farris "finds herself pushing her resilience to the limit."

The "Hostages" actress will make her debut on the show during Episode 6 of the upcoming season.

In addition, "Warehouse 13" actor Erick Avari will guest star as a salvage-yard owner. His business will grab Nick's attention in regard to several highway disappearances.

NBC also unveiled details and photos about the new Wesen Nick and Hank will face when Season 4 kicks off next month, reports Entertainment Weekly.

Gedächtnis Esser, or Octo-man, is an evil Wesen who "steals your identity but in a very disgusting way," reports the Los Angeles Times' Hero Complex. The Wesen, which is part-man and part-octopus, attaches its tentacles to someone's head in order to steal their memories and leave them with dementia.

"A lot of what we do is try to explain real-world problems, like in this case, identity theft," Kouf told EW. "Our best Wesen ideas come when we have an emotional core that explains something in life."

The Schinderdiv is a demonic beast that represents "people who are only out for themselves and do anything to achieve a goal," teased executive producer David Greenwalt. In a photo, the ruthlessness and selfishness Wesen appears to have long-bottom fangs.

Season 4 of "Grimm" premieres on NBC on Friday, Oct. 24 at 9 p.m. ET.