"Warehouse 13" writer-producer David Simkins is joining NBC's "Grimm," according to The Hollywood Reporter.

Simkins will serve as a co-producer for Season 2 of the fantasy drama, and like "Grimm" executive producers and writers David Greenwalt ("Buffy the Vampire Slayer") and Jim Kouf, he has also worked on the David Boreanaz vampire drama "Angel."

NBC recently announced a 22-episode order for "Grimm's" second season.

The series, which is inspired by Grimm’s Fairy Tales, fuses elements of fantasy to a crime drama format and chronicles a dark but fantastical world in which fairy tale characters exist.

It follows detective Nick Burckhardt (David Giuntoli) as he embraces his family's legacy of protecting mankind from the supernatural creatures of the world. He is aided by a reformed Blutbad, who has mastered his race's dark impulses.

Simkins' other credits include "Roswell," "Human Target" and "Charmed."

Sean Hayes and Todd Milliner ("Will & Grace") also hold executive producing duties on the series, which is spearheaded by Universal Television and Hazy Mills Productions.

Grimm’s Fairy Tales is a collection of German origin fairy tales published by Jacob and Wilhelm Grimm in 1812.