'Grimm' season 4 spoilers: Captain Renard to return, Monroe and Rosalee's honeymoon

The cast and producers of "Grimm" attended the San Diego Comic-Con and delightfully spilled spoilers of season 4 for the media and fans. So, what will come on the 4th season?

According to TVGuide, Silas Weir Mitchell gave a preview of "Grimm" season 4, saying "The Grimm has been un-Grimmed... things are turned upside-down." Mitchell shared that Monroe's honeymoon will be affected by the un-grimming.

While Monroe and Rosalee will still try to enjoy their honeymoon, "things are complicated in Portland these days," added Mitchell.

In reference to the wedding back in the season 3 finale, Bree Turner added: "We are exposed now as Wesen harboring this Grimm." Wesen will now be looking for answers and this could affect the post-wedding schedule.

David Guintol shared his own spoiler, saying, "Trubel is now my seeing-eye Grimm." Trubel, played by Jacqueline Toboni, will be more present in Nick's life in season 4.

As for Sasha Roiz, she said, "I think we'll try to find some interesting way to bring [Captain Sean Renard] back." Many are relieved to know that the Captain and Roiz will be back for the new season.

What are the other major spoilers for "Grimm" Season 4? Well, Captain Renard's mom will be in the new season. And then Adalind's baby is confirmed to be seen, with David Greenwalt confirming this. Chupacabra and Octo-Man will be seen as well as more details about the seven keys are released. As for Sergeant Drew Wu, played by Reggie Lee, fans have to wait for season 4 to know if he will be part of Nick's core support group.

Meanwhile, according to TV Line, Elizabeth Rodriguez from "Orange is the New Black" will be joining the cast. She is to play Special Agent Chavez, who will investigate the death of Weston.

"Grimm" season 4 will return on NBC on October 24.