Visitors

Visitors (often called Greys in popular culture) are aliens who came to Earth and gave Eric Cartman an anal probe in the pilot episode "Cartman Gets an Anal Probe". They also kidnap Ike later in the same episode. As a matter of fact, Visitors believe that cows are the most intelligent species on earth. And considering the fact that they were studying South Park, it would seem they are rather justified in thinking this, if not totally accurate.

Episodes

 * "Cartman Gets an Anal Probe" - First Appearance, kidnapped Cartman and Ike; believed cows were smartest life forms on Earth.
 * "City on the Edge of Forever (Flashbacks)" - Appeared in Stan's dream of the boys' incorrect memories.
 * "The Red Badge of Gayness" - Seen on their home planet.
 * "The Biggest Douche in the Universe" - With the other aliens who came for John Edward.
 * "Cancelled" - Viewers of the alien network.

Hidden visitors
South Park animators have "hidden" visitors in many episodes, especially early in the series. They poke a little fun at this practice in "Canceled" when the receptionist at the proctologist's office is a Visitor disguised only in a wig. Then, to the sound of percussive music, this Visitor dramatically removes his/her wig. In the latest season it was a contest for viewers to find where they were hidden. They can predominantly be spotted in different places in certain episodes.

Pictures of visitors

 * A picture of a Visitor appears on the "Have you seen me?" poster in the cafeteria in the episodes:
 * "The Mexican Staring Frog of Southern Sri Lanka"
 * "Chef Aid"
 * "The Succubus"
 * "Sexual Harassment Panda"
 * "The Tooth Fairy Tats 2000"
 * "Elementary School Musical"
 * "Chef Goes Nanners"
 * "Fat Camp"
 * "Proper Condom Use"
 * "The List"
 * "Fatbeard"
 * "Crème Fraiche"
 * "T.M.I. "


 * A crayon drawing of a Visitor appears on the "our pets" notice board in classroom scenes in the episodes:
 * "World Wide Recorder Concert"
 * "Timmy 2000"
 * "Cherokee Hair Tampons"
 * "Chef Goes Nanners"


 * In episode "Pinewood Derby" when the crowd awaits the aliens there are 3 signs showing pictures of Visitors.

Real visitors

 * "Cartman Gets an Anal Probe" - First Appearance, kidnapped Cartman and Ike; believed cows were smartest life forms on Earth.
 * "The Red Badge of Gayness" - Seen on their home planet.
 * "The Biggest Douche in the Universe" - With the other aliens who came for John Edward.
 * "Cancelled" - Crew members of the reality show, "Earth"

Season One

 * "Big Gay Al's Big Gay Boat Ride" - In the audience at the Football game.
 * "Pinkeye" - Three Visitors can be found in this episode
 * At the morgue a miniature Visitor is seen in a jar.
 * Another Visitor can be seen when Liane Cartman is decorating the house.
 * Back at the morgue, on a calendar.
 * "Damien" - There are four aliens in this episode.
 * In the whirlwind that occurs as Satan speaks.
 * Cheering in the boxing match crowd
 * Behind the mayor in the boxing match.
 * In the very begining there are four drawings of visitors on the classroom board directly behind Wendy.
 * "Cartman's Mom is a Dirty Slut" - The Visitor is behind Chief Running Water.

Season Two

 * Terrance and Phillip in Not Without My Anus" - Sitting on the stands with Cow hats and in Tehran.
 * "Cartman's Mom is Still a Dirty Slut" - Standing among the crowd of Cartman's potential fathers in the hospital.
 * "Chickenlover" - An alien is brushing a horse at the petting zoo.
 * "Conjoined Fetus Lady" - A picture of an alien playing tennis is seen in a Dodgeball stadium.
 * "Summer Sucks" - Standing in the pool where Cartman is getting his swimming lessons.
 * "Chef's Chocolate Salty Balls" - Three Visitors can be found in this episode:
 * Rushing out of the theater with the others at the end of of "Me and Mr.Hankey".
 * At the "Bijou" on the 2nd row from the back, behind the man with the cowboy hat.
 * In the same row mentioned above but behind the person to his left.
 * "Roger Ebert Should Lay Off the Fatty Foods" - In the final scene when Cartman speaks about being on TV and a hero, a Visitor's silhouette is on a computer console, with colored lights making up the eyes.
 * "Cow Days" - Two Visitors appear in this episode:
 * Peeking out of the freaks tent when Kyle tells Kenny to give up his food stamps.
 * Driving the limo at the end of the episode.
 * "Spookyfish" - There are two Visitors in this episode:
 * Before Cartman meets his evil counterpart, the woman on the sign has a Visitor's head.
 * When Stan's dog is digging up the dead bodies you can see a (green) Visitor behind a tree.
 * "Merry Christmas Charlie Manson!" - While racing from the mall Manson's tattoo changes from a smiley face to a Visitor.
 * "Gnomes" - Appears in the final scene, standing in the back row of the group shot outside Harbucks Coffee House while everyone is laughing at Tweek.

Season Three

 * "Spontaneous Combustion" - The outline of the face of a Visitor can be seen on the moon, when Cartman dreams that Chef rescues him from the cross.
 * "Cat Orgy" – Behind Ripley when Cartman is watching "Aliens".

Season Four

 * "Chef Goes Nanners" - When Chef discovered Jimbo and Ned wearing KKK robes, for one second a Visitor is seen standing in the shadows next to a tree.
 * "Something You Can Do With Your Finger" – On one of the pillars that hold up the bridge in a picture above Stan’s parents bed, before they go to the mall.
 * "Do The Handicapped Go To Hell?" - There are two Visitor sightings in this episode.
 * On both sides of the confessional when Cartman is thrown out. Look at the top of the confessional.
 * Beyond a tree when Cartman is baptizing Kyle, Timmy, and Ike.


 * "Probably" - On top of Cartman's Church.

Season Five

 * "It Hits the Fan" – In Merlin’s lair, opposite the entrance.
 * "Super Best Friends" - Two Visitors appear in this episode:
 * Upside down in Jesus' reflection when he lines up with the others.
 * Part of one appears at the David Blaine show in Denver in the overhead screen.
 * "Proper Condom Use" - Two Visitors can be seen watching Butters putting on a condom in a tree.
 * "Towelie'"- On one of the towel clones behind the blonde haired leader of the group trying to take Tynacorp down when he is telling the boys how they have been double crossed.

Season Six

 * "Jared Has Aides" - Four can be seen in this episode:
 * Chef uses a Visitor shaped spoon when he leads the boys into the kitchen.
 * When Jared follows his girlfriend out, if you look very closely to his left is a Visitor on the wall.
 * When Jimbo announces that AIDS is funny a Visitor is seen over Mayor McDaniels' head.
 * When Tuong Lu Kim pays the boys for their work, one is seen behind the post office.
 * "Asspen" Two Visitors appear in this episode:
 * When Cartman joins in for breakfast a Visitor replaces Kyle's chair support.
 * One looks at Thumper teaching, then skis off.
 * "Fun With Veal" - Next to Butters when Cartman starts the negotiation.
 * "Professor Chaos" - In front of the "Yeti Log Ride".
 * "Red Hot Catholic Love" - Atop the obelisk at "Vatican Square".
 * "The Biggest Douche in the Universe" - In between Chef and Liane at John Edward's show.
 * "My Future Self n' Me" - Under the window in Butters' living room.
 * "Red Sleigh Down" - In the crowd in the second scene where the mayor announces the Christmas lights will be lit shortly. He is in the crowd cheering, slightly above Dr. Mephesto to the right of the screen.

Season Seven

 * "I'm a Little Bit Country" - In the closing scenes of the episode, with the other guests.

Season Eight

 * "You Got F'd in the A" - In the crowd after the O.C. crew is killed
 * "Goobacks" - Atop a tall building in Little Future.

Season Nine

 * "Bloody Mary" - On the right side of the screen, mixed with the car background, as Stan is talking with his father. This Visitor is seen only in one part of the scene change, after Randy finds out that the Virgin Mary statue is bleeding.

Season Ten

 * "A Million Little Fibers" - Next to an ambulance, while Gerardo is reporting on the standoff between Mingey and the police.

Season Eleven

 * "Cartman Sucks" - When Cartman shows the class the slide of Butters and himself you can see the alien's eyes on his forehead.
 * "More Crap" - On the door handles to Bono's front door.

Season Twelve

 * "Tonsil Trouble" - In the audience at the end of the episode.
 * "Britney's New Look" - A silhouette of a Visitor dances on a video wall at the 2007 VMA's.
 * "Major Boobage" - Painted on the arch Kenny sees when he spots the woman being tortured.
 * "Canada on Strike!" - On a building.
 * "Eek, A Penis!" - Pasted against a tree behind Kenny's left shoulder.
 * "Over Logging" - A well dressed Visitor can be seen observing Randy while he's talking to the owner of the "Internet Porn Simulator".
 * "Super Fun Time" - Etched into the wooden fence surrounding the "Pioneer Village", at the end of the episode.

Season Thirteen

 * "Dead Celebrities" - After they announce the winner at the end. He is sitting with the audience with a wig and make-up on.
 * "Butters' Bottom Bitch" There are two visitors in this episode.
 * When it shows butters with his tie, and the other playground kids about to go behind the school to kiss the girl. He is really small, in the very far background, behind the jungle gym.
 * When Butters gives a "sunshine sticker" to Charise, a visitor can be seen on the upper right corner of Butters' pimp schedule.
 * "W.T.F." - There are five Visitors in this episode:
 * At the pay phone just outside the Pepsi Center entrance.
 * Rushing out the front entrance near the Visitor above.
 * On a woman's shirt.
 * Behind a woman, before she walks by and blocks him out of view.
 * A girl is caring a Visitor doll in her hand.
 * "Whale Whores" - On the crab fishing boat when it first appears, among the crowd. Only eyes are visible.
 * "The F Word" - Hidden against the wall outside "Ronny's Diner".
 * "Dances with Smurfs" - When Cartman is sitting down, in the background in the door.
 * "Pee" - Holding a banana at the end of the episode.

Bigger,Longer and Uncut

 * On Cartman's left (looks like the right to us) in Mountain Town (Reprise)

Characters

 * Carl is the only named Visitor. He's one of the Visitors that gave Eric Cartman an Anal Probe. He was new and was accidentally turning cows inside out.
 * The hidden Visitor in "An Elephant Makes Love to a Pig" on the 'Our Pets' board is also named Carl.