In the main series
Caterpie debuted in Pokémon Emergency!, where Ash encountered it in Viridian Forest. He caught it in Ash Catches a Pokémon, making Caterpie the first Pokémon he caught in the wild. It evolved into Metapod in the same episode after a battle with Team Rocket, and then into Butterfree during the following episode.
Caterpie also appeared in I Choose You!, which is set in a different continuity from the main series. It evolved into Metapod during a battle against Pinsir and later into Butterfree after a battle against Primeape.
A Caterpie appeared in The Dunsparce Deception, under the ownership of Bucky. He used it to compete in a race with Dunsparce, but it ultimately lost due to its slow speed.
A Caterpie appeared in Caterpie's Big Dilemma, under the ownership of Zander. It ate some of Dr. Gordon's enhanced Rare Candies and turned giant as a result. It eventually evolved into a Mothra-sized Butterfree.
A Caterpie appeared in Butterfree and Me! as a resident of Wayfarer Island. Ash befriended it after realizing it had yet to evolve, which reminded Ash of his own Caterpie. As a result, he helped Caterpie evolve into Metapod and then into Butterfree.
A Caterpie appeared in Bulbasaur and the Hidden Village as one of the Pokémon in Melanie's care. It reappeared in a flashback in Bulbasaur... the Ambassador!.
A Trainer's Caterpie appeared in Electric Shock Showdown.
A Caterpie appeared in Battle Aboard the St. Anne as one of the Pokémon seen aboard the St. Anne.
A Caterpie appeared in Pokémon Fashion Flash as one of the Pokémon seen on Scissor Street.
A Caterpie appeared in a fantasy in Dig Those Diglett!.
A Caterpie appeared as an image in The Ultimate Test.
A Caterpie appeared in The Breeding Center Secret.
A Caterpie appeared in Clefairy Tales.
A Trainer's Caterpie appeared in Mewtwo Strikes Back as one of the Pokémon Mewtwo defeated while serving for Giovanni.
A pink Caterpie appeared in In the Pink as a resident of Pinkan Island.
Multiple Caterpie made brief cameo appearances in Tracey Gets Bugged as some of the Bug-type Pokémon on Murcott Island.
Two Caterpie appeared in a flashback in Wherefore Art Thou, Pokémon?, one each under the ownership of Ralph and Emily.
A wild Caterpie appeared in Pikachu's Rescue Adventure.
A Caterpie appeared in Illusion Confusion! as one of the illusions created by a group of Haunter and Gengar.
Multiple Caterpie appeared in For Crying Out Loud, where they were accidentally splashed by Wilhomena's Marill.
Multiple Caterpie appeared in Gettin' The Bugs Out, where they were residents of Azalea Gym. One Caterpie scared Misty by coming down the trees. Later on, they assisted in tying Team Rocket up with silk.
A Caterpie appeared in The Bug Stops Here, where it was chased it away by Misty after she found it talking with Togepi.
A Caterpie appeared in Carrying On! as one of the sick Pokémon in Way Away Island's Pokémon Center.
A Caterpie appeared in Jessie's fantasy in Wings 'N' Things.
Multiple Caterpie appeared in Celebi: The Voice of the Forest. One of them appeared during the movie's opening intro, which was reused for Pokémon Heroes: Latios & Latias.
A Caterpie appeared in Got Miltank? as an inhabitant of a Pokémon-exclusive oasis.
Multiple Caterpie appeared in For Ho-Oh the Bells Toll!, where they protected the Tin Tower after Team Rocket stole the Crystal Bells on the top floor.
A Caterpie appeared in Talkin' 'Bout an Evolution, where it fell sick due to Team Rocket's experiments.
A Caterpie appeared in Pokémon Heroes: Latios & Latias.
A Caterpie appeared in Camp Pikachu.
A Caterpie appeared in Gonna Rule The School!, under the ownership of the Pokémon Trainers' School. It was temporarily loaned to one of the school's underage students for use.
A Caterpie appeared in Destiny Deoxys.
A Caterpie appeared in Hi Ho Silver Wind!, under the ownership of a Coordinator.
A Caterpie appeared in The Green Guardian.
A Coordinator's Caterpie appeared in What I Did for Love!.
Two Caterpie appeared in Some Enchanted Sweetening!, where they were lured in by the Honey that Cheryl had slathered onto a tree. Additional Caterpie also appeared in a boss fantasy in the same episode, but said boss fantasy was cut from the dub due to it containing suggestive material.
A Caterpie appeared in The Grass-Type Is Always Greener!.
Two Caterpie appeared in An Angry Combeenation!.
A Caterpie appeared in One Big Happiny Family! in Jessie's fantasy.
A Caterpie appeared in One Team, Two Team, Red Team, Blue Team!.
Multiple Caterpie appeared in Coming Full-Festival Circle!.
A Caterpie appeared in Genesect and the Legend Awakened as a resident of Pokémon Hills.
A Caterpie appeared in Kalos, Where Dreams and Adventures Begin!.
A Caterpie appeared in Lumiose City Pursuit!, Mega-Mega Meowth Madness!, Day Three Blockbusters!, and Battling With a Clean Slate! at Professor Sycamore's lab.
A Caterpie appeared in a flashback in Seeing the Forest for the Trees!.
Two Caterpie appeared in Lillie's Egg-xhilarating Challenge!, where they were among the Pokémon playing in Lillie's garden. One of them reappeared in The Ol' Raise and Switch!.
A Caterpie appeared in Lulled to La-La Land! during a fantasy.
Multiple wild Caterpie appeared in Alola, Kanto!.
A Trainer's Caterpie appeared in Now You See Them, Now You Don't!.
A Caterpie appeared in Tasting the Bitter with the Sweet!.
A Trainer's Caterpie appeared in The Power of Us.
Four Caterpie appeared in Securing the Future!, with three under the ownership of different Trainers and the fourth being wild. They joined the rest of Alola in showering Necrozma with light so it could return to its true form.
A Caterpie appeared in Battle Royal 151, where it was among the Pokémon watching Bewear and Stufful put on a performance in their hot springs.
A Trainer's Caterpie appeared in SM141.
A Trainer's Caterpie appeared in SM144, where it watched the battle between Ash's Pikachu and Tapu Koko.
|| May's Pokédex
|| Caterpie, the Worm Pokémon. Caterpie uses the suction cups on its feet to climb trees and feed on its favorite leaves.
| This concludes the entries from the Advanced Generation series.
|| Ash's Pokédex
|| Caterpie, the Worm Pokémon. To repel enemies, Caterpie releases an unpleasant odor from its red antenna. It molts several times while growing.
| This concludes the entries from the Best Wishes series.
In Pokémon Origins
Red caught a Caterpie, which was registered in his Pokédex. It evolved into Metapod before his Gym battle with Brock.
Two Caterpie appeared in File 3: Giovanni caged in the Rocket Hideout and Silph Co. while Team Rocket was around.
In Pokémon Generations
A wild Caterpie appeared in The Adventure, where Pikachu encountered and battled it in Viridian Forest.
In The Electric Tale of Pikachu manga
- Main article: Ash's Caterpie
Ash's Caterpie is the second wild Pokémon that Ash catches, being caught in Pikachu, I See You!. It evolves twice in Play Misty For Me—first into Metapod while Ash is showing off his Pokémon to Misty, and then into Butterfree during his Gym battle against Misty.
Ash is not shown releasing his Butterfree in the manga, although it is not seen after Haunting My Dreams.
In the Magical Pokémon Journey manga
A Caterpie appeared in Tangela's Secret.
In the Pokémon Adventures manga
- Main article: Kitty
Caterpie debuted in a cameo in Bulbasaur, Come Home! as one of the Pokémon that escapes from Professor Oak's Laboratory. It also makes a cameo in The Secret of Kangaskhan.
A Caterpie appeared as a silhouette when Green talks about Mew in The Jynx Jinx.
A Caterpie appeared in As Gastly as Before. With the help of her fishing rod and Red's Pika, Yellow saved a Caterpie from its tree, which was targeted by a Fire attack. Caterpie then followed Yellow to Route 9, where she and Blue were training. It took Yellow a whole day to properly catch this Caterpie with a Poké Ball, but once she prevailed, Yellow welcomed Caterpie to her team and called it "Kitty". It then became one of Yellow's most useful Pokémon, whose string was commonly used to make floaters. However, in the battle against Lance, Yellow did not have a Pokédex, which she needed to stop her Pokémon from evolving. As a result, Kitty evolved into Metapod and then into Butterfree right afterwards.
A Caterpie was mentioned as one of the Pokémon Crystal had caught for Professor Oak in Three Cheers for Chikorita.
A Caterpie was one of the Pokémon Crystal fails to catch in Absolutely Azumarill.
A Caterpie appeared in The Last Battle XIII as one of the Pokémon sent to participate in the fight in Ilex Forest.
According to the Pokédex at the end of Volume 1, Red appears to have caught a Caterpie, which evolved into a Metapod and then a Butterfree.
In the Pokémon Gotta Catch 'Em All manga
Shu has a Caterpie that he uses in various creative ways, mostly involving strange uses of its String Shot.
In the Pokémon Mystery Dungeon: Ginji's Rescue Team manga
- Main article: Caterpie (Red and Blue Rescue Team)
In Pokémon Mystery Dungeon: Ginji's Rescue Team, Ginji saved a Caterpie from an attacking Ariados.
In the Pokémon Pocket Monsters manga
A Caterpie is seen with Green during the baseball match that took place in Fierce Competition at the Pokémon Baseball Tournament!.