Executive Producer Sean Hayes joins the show's cast and crew as they pull back the curtain on the secret world of fairytales in this behind-the-scenes sneak peek of Grimm.

The cast explain how the new drama series "Grimm" is inspired by the classic, and sometimes terrifying, Grimm's Fairy Tales.

Bud Wurstner shows up at the Spice Shop to meet Monroe and Rosalee, whom Nick Burkhardt recommended he see regarding his hair loss problem. Bud asks if Rosalee has a remedy for hair loss for his "friend", and satisfied with their answer, he excitedly leaves.

Rosalee employs the help of Monroe in making the hair regrowth formula.

Bud returns to thank Monroe and Rosalee for preparing the formula "for his friend". Rosalee also tries Monroe's "creative" baking, which involved making a dandelion-seaweed cookie.

Bud comes into Rosalee's shop panicking because his hair (and his friend's hair) is growing out of control.

Officers Wu and Franco question Bud at his repair shop to determine if he has witnessed anything out of the ordinary.

Realizing he is trapped and doesn't have his cell phone to call for help, Bud attempts a dangerous retrieval.

Bud calls Wu and Franco for help with the intention of freeing himself from his predicament. Unfortunately, all three become entangled.

When Bud, Wu, and Franco are trapped in a disconnected freezer, backup arrives in a surprising way.

Juliette and Rosalee throw a big spa party at Juliette's house and are surprised when Madison shows up to demonstrate the products.

The party continues at Juliette's house and things began to get really warm.

As the party gets warmer, a Juliette and Rosalee trap a strange visitor in the kitchen and realize exactly what is going on.

After determining what is going on, Juliette and Rosalee put their plan to correct the situation into action with surprising results.

Deleted scenes from episode 1 "Pilot" from Season 1.

Deleted scenes from episode 6 "The Three Bad Wolves" of season 1.

Deleted scenes from episode 7 "Let Down Your Hair" of season 1.

Deleted scenes from episode 8 "Game Ogre" of season 1.

Deleted scenes from episode 9 "Of Mouse and Man" of season 1.

Deleted scenes from episode 11 "Tarantella" of season 1.

Deleted scenes from episode 13 "Three Coins in a Fuchsbau" of season 1.

Deleted scenes from episode 14 "Plumed Serpent" of season 1.

Deleted scenes from episode 15 "Island of Dreams" of season 1.

Deleted scenes from episode 16 "The Thing With Feathers" of season 1.

Deleted scenes from episode 17 "Love Sick" of season 1.

Deleted scenes from episode 19 "Leave It To Beavers" of season 1.

Deleted scenes from episode 22 "Woman in Black" of season 1.

Outtakes from Season 1.

Discover the characters, creatures and inspiration behind the storylines.

Go behind the scenes with the teams who bring the monsters to life.

See part of David Giuntoli's audition tape for the part of Nick Burkhardt.

See part of Silas' audition tape for the part of Monroe.

See part of Russell's audition for the part of Hank Griffin.

See part of Bitsie's audition for the part of Juliette Silverton.

See part of Reggie's audition for the part of Sgt. Drew Wu.

Extended version of episode 6 of season 2. Angelina comes to town with bad news; Nick asks Hank for help keeping Monroe safe; Captain Renard receives a visit from a past acquaintance.

Deleted scenes from episode 1 Bad Teeth (3 scenes).

Deleted scenes from episode 2 The Kiss (5 scenes).

Deleted scene from episode 3 Bad Moon Rising (1 scene).

Deleted scenes from episode 5 The Good Shepherd (2 scenes).

Deleted scenes from episode 7 The Bottle Imp (2 scenes).

Deleted scenes from episode 8 The Other Side (2 scenes).

Deleted scenes from episode 12 The Season of the Hexenbiest (6 scenes).

Deleted scenes from episode 13 Face Off (

Deleted scenes from episode 18 Volcanalis (3 scenes).

Deleted scenes from episode 19 Endangered (3 scenes).

Deleted scene from episode 20 Kiss of the Muse (1 scene)

Deleted scenes from episode 21 The Waking Dead (4 scenes).

Deleted scenes from episode 22 Goodnight, Sweet Grimm (8 scenes).

Outtakes from Season 2 of Grimm.

A look behind the storylines of season 2.

A montage of the creatures in the world of Grimm causing chaos.

A collection of Monroe's best moments from Season 2.

Deleted scenes from episode 1 The Ungrateful Dead.

Deleted scenes from episode 3 A Dish Best Served Cold.

Deleted scenes from episode 7 Cold Blooded.

Deleted scenes from episode 8 Twelve Days of Krampus.

Deleted scenes from episode 9 Red Menace.

Deleted scenes from episode 10 Eyes of the Beholder.

Deleted scenes from episode 11 The Gold Soldier.

Deleted scenes from episode 12 The Wild Hunt.

Deleted scenes from episode 13 Revelation.

Deleted scenes from episode 14 Mommy Dearest.

Deleted scenes from episode 15 Once We Were Gods.

Deleted scenes from episode 16 The Show Must Go On.

Deleted scenes from episode 20 My Fair Wesen.

Deleted scenes from episode 21 The Inheritance.

Deleted scenes from episode 22 Blond Ambition.

Outtakes from Season 3 of Grimm.

A look behind the scenes of season 3 of Grimm.

A look behind the scenes of the hundjäger fight sequence.

Deleted scenes from episode 1 Thanks for the Memories

Deleted scenes from episode 2 Octopus Head.

Deleted scenes from episode 3 Last Fight.

Deleted scenes from episode 4 Dyin' on a Prayer.

Deleted scenes from episode 5 Cry Luison.

Deleted scenes from episode 9 Wesenrein.

Deleted scenes from episode 11 Death Do Us Part.

Deleted scenes from episode 12 Maréchaussée.

Deleted scenes from episode 13 Trial by Fire.

Deleted scenes from episode 14 Bad Luck.

Deleted scenes from episode 15 Double Date.

Deleted scenes from episode 18 Mishipeshu.

Deleted scenes from episode 19 Iron Hans.

Deleted scenes from episode 20 You Don't Know Jack.

Deleted scenes from episode 21 Headache.

Outtakes from Season 4 of Grimm.

A look behind the scenes of Season 4 of Grimm.

A look around the set of Grimm post Juliette's attack with Jacqueline Toboni who plays Trubel.

Bud recaps the story up to the end of Season 4.

Deleted scene from episode 1 The Grimm Identity.

Deleted scenes from episode 4 Maiden Quest.

Deleted scenes from episode 8 A Reptile Dysfunction.

Deleted scenes from episode 9 Star-Crossed.

Deleted scenes from episode 10 Map of the Seven Knights.

Deleted scenes from episode 11 Key Move.

Deleted scenes from episode 12 Into the Schwarzwald.

Deleted scenes from episode 13 Silence of the Slams

Deleted scenes from episode 15 Skin Deep.

Deleted scenes from episode 16 The Believer.

Deleted scenes from episode 17 Inugami.

Deleted scenes from episode 18 Good to the Bone.

Deleted scenes from episode 19 The Taming of the Wu.

Deleted scenes from episode 20 Bad Night.

Deleted scenes from episode 21 Beginning of the End.

Outtakes from Season 5 of Grimm.

A look behind the scenes of Season 5 of Grimm.

A look behind the scenes of the 100th episode.

Adam Reamer (Production Designer) gives a tour of Nick's loft.

Deleted scenes from episode 3 Oh Captain, My Captain.

Deleted scenes from episode 4 El Cuegle.

Deleted scenes from episode 5 The Seven Year Itch.

Deleted scenes from episode 6 Breakfast in Bed.

Deleted scenes from episode 7 Blind Love.

Deleted scenes from episode 8 The Son Also Rises.

Deleted scenes from episode 10 Blood Magic.

Deleted scenes from episode 11 Where the Wild Things Were.

Deleted scenes from episode 12 The End.

Outtakes from Season 6 of Grimm.

A look at the final season of Grimm.

Reggie Lee's video diary from the final days of recording Season 6.

A look at Nick's journey across the 6 seasons of Grimm.