Disturbing Muppet Moments You Didn't Realize Were For Adults

Liza Minnelli is the guest star in this murder mystery special (Season 4, Episode 14), and half the cast dies. There are shootings, stabbings, hatchets, arrows through the head, choking, and the obligatory body falling out of the closet. Sure mystery is fun and all, but this is some dark stuff. And throw in some jokes about women's legs and Liza being a "sax symbol" and you've got a winner.

In 1971, Kermit the Frog stopped by The Dick Cavett Show and performed a skit titled "Glow Worm". He sits alone, eating worms that crawl past until one turns out to be the nose of a horribly scary monster, which devours him. This was a recreation of "Inchworm" (Season 2, Episode 4), an early Muppets sketch starring Lenny the Lizard, which was actually a recreation of the same skit done on a Jack Paar show. Whichever version you watch, early Jim Henson is still pretty dang dark and certainly terrifying to a child. 

Animal was always mad about the ladies, chasing them, panting, and screaming "Woman! Woman!" But when Rita Moreno guest starred (Season 1, Episode 5), he gets the brunt of her anger. During the musical number "Fever," she scolds him in Spanish and English, eventually smashing his head between two cymbals. Like a true animal he exclaims, "You're my kind of woman!" This scene might have seemed less sadistic if she hadn't also been wearing a sexy dress.

Let it be known that Alice Cooper brings his own monsters to the set of The Muppet Show (Season 3, Episode 7). In this episode, he is also the devil and tries to entice the cast to sell him their souls before breaking into "School's Out." This episode's theme was based entirely around the guest star, so creepy happenings abound, including Beaker being overcome with germs, the Pigs In Space crew suddenly transforming into outlines, and William Tell's assistant getting an arrow through the head. We will forever wonder what would have transpired if KISS had ever guest starred.

Lucky viewers of the Raquel Welch Muppet Show episode (Season 3, Episode 11) will get an eyeful of the sultry actress. After escaping a horde of male Muppets panting outside her dressing room, she performs "Baby It's Me" – all the while scantily clad and with a prehistoric spider. Later, she serenades Fozzie to boost his self esteem – among other things – and invites him to her dressing room for tea. Fozzie innocently asks if he can bring some friends, proving Jim Henson was a master of both puppetry and double entendre.

Guest star Marisa Berenson (Season 3, Episode 10) got the honor of leading this delightful song by Shel Silvertein, full of advice on how to deal with unwanted visitors like salesmen and teachers. "You're Always Welcome At Our House" features the unfortunate victims clobbered with a hammer, poisoned with lemonade, and stuffed in the oven – and then joining along with the chorus of the song. At least children might be able to identify with the poor kid locked in the basement for trying to get his ball back.