Grimm is eying a comeback. NBC is developing a spinoff from the supernatural series, which bowed out last year after six seasons. Like the original, the offshoot hails from Universal TV and Sean Hayes and Todd Milliner’s studio-based Hazy Mills Prods.

Written by Melissa Glenn (Marvel’s Iron Fist), the untitled spinoff, I hear, will center on a female Grimm. Per NBC, building off the mythology of the original series, the new show will feature returning fan favorites while also introducing new characters, new dangers and epic new mysteries. I hear no actors are currently attached but the idea is for the offshoot to feature some original cast members, regular or recurring.

Glenn executive produces with Hazy Mills’ Hayes and Milliner. Grimm co-creators/showrunners David Greenwalt and Jim Kouf will serve as consulting producers.

The original series followed Portland Homicide detective Nick Burkhardt (David Giuntoli), who discovered he is a Grimm,...