Muppets Haunted Mansion is a 2021 American comedy Halloween special based on the Disney properties The Muppets and The Haunted Mansion. It was released on October 8, 2021, via Disney+. It is the Muppets' first Halloween special. The plot stars Gonzo and Pepe as they face the challenge of staying in a haunted mansion for one night. It received generally positive reviews from critics.

Instead of attending the Muppets' annual Halloween party, Gonzo and Pepe are on their way to a fear challenge event in the same haunted mansion where Gonzo's favorite magician, The Great MacGuffin, disappeared one-hundred years ago. Upon being dropped off by their hearse driver (Yvette Nicole Brown), Gonzo and Pepe meet the Caretaker (Darren Criss), along with several ghosts and singing busts.

Their "Ghost Host" (Will Arnett) tells Gonzo that he has been summoned to the mansion to see if he can survive one night. If he cannot, he and Pepe will be trapped there forever. While Gonzo claims that he fears nothing, Pepe is easily scared by everything he sees in the mansion. After meeting Madame Pigota (who resembles Miss Piggy), Gonzo and Pepe come across a room full of several ghosts resembling various Muppets. The Host soon appears and informs Gonzo that in order to survive the mansion he must face his fears in Room 999.

As Gonzo is led to the room, Pepe meets and becomes entranced by the ghost of Constance Hatchaway (Taraji P. Henson), who plans to marry and then kill him as he meets the ghosts of her past husbands. Gonzo is trapped in Room 999 (with the room's number sign turning upside down to read "666") and starts to turn old as his reflection taunts him. Recalling a conversation with Kermit he had earlier, Gonzo realizes he is indeed afraid of something: that no one will like him if he does not do dangerous stunts. He then remembers the Host's advice of facing his fears being the key to escaping the room after fearing he will be trapped in the mansion forever. Finally, Gonzo ultimately realizes he is afraid of never seeing his friends again and the room de-ages and releases him.

The Host congratulates Gonzo for facing his fears and tells him that he is free to go so long as he makes it out by sunrise. After realizing that Pepe is in trouble, Gonzo refuses to leave without him. With the help of the Host's candelabra, Gonzo is able to find Pepe and stop the wedding. The pair jump out the window and make it out of the mansion just as the sun rises.

The Host meets them at the gate, revealing himself to be the Great MacGuffin, who is impressed that Gonzo was willing to do what he could not; face his fears. The hearse driver picks them up and Kermit calls asking to meet the pair for breakfast. He then comments that Gonzo and Pepe should bring their friends along, leading the two to turn and see the Hitchhiking Ghosts behind them.

• Will Arnett as the Host
• Yvette Nicole Brown as the Hearse Driver
• Darren Criss as the Caretaker
• Taraji P. Henson as the Bride
• Kim Irvine as Haunted Mansion Maid
• Quinn McPherson as Hallway Knight
• John Stamos as Famous Person

Early attempts to produce a Halloween special centered on The Muppets date back to the early 1990s. Following Jim Henson's death, his son Brian planned to continue the franchise's presence on television by releasing a series of holiday specials, with the first one tentatively centered around Halloween.^[1] The project ultimately was cancelled, and eventually the TV series Muppets Tonight was released instead.

In March 2009, it was announced during a special event at Disney's Hollywood Studios, that The Walt Disney Company, who acquired The Muppets in 2004, was developing a Halloween special based on the franchise.^[2] A 2010 release date was later announced.^[3] However, the special was postponed in order for The Muppets Studio to focus entirely on the 2011 film, and eventually cancelled.^[4]

In May 2021, a Muppets Halloween special based on the Disney theme park attraction The Haunted Mansion, titled Muppets Haunted Mansion, was announced to be in development.^[5] Filming took place in April 2021 during eighteen days.^[6] In August 2021, longtime Muppet director Kirk Thatcher revealed that he wrote and directed the special, and shared a teaser image from it.^[7]

Later that month, Geoff Keighley and Darren Criss were revealed to be part of the cast as Uncle Theodore and The Caretaker, respectively, while Kelly Younger was revealed as co-writer.^[8][9] The rest of the cast was announced the following September.^[10]

Ed Mitchell and Steve Morrell wrote the music for the special,^[11] including three new songs, titled "Rest In Peace", "Life Hereafter", and "Tie The Knot Tango",^[12] as well as a cover of King Harvest's "Dancing in the Moonlight".^[10]

This was one of Ed Asner's final acting works before his death, he was described on The Muppets social media as "a great friend of the Muppets" at the time of his death and the special was dedicated to his memory.^[13]

Muppets Haunted Mansion was released exclusively on Disney+ on October 8, 2021.^[14][5] The special made its linear TV premiere on Disney Channel on October 22, 2022.