Lady Rainicorn
Lady Rainicorn
Name Lady Rainicorn
Gender Female
Species Rainicorn
Occupation Princess Bubblegum's Royal Pet/Transport
Relatives Bob Rainicorn (father)

Ethel Rainicorn (mother)
Jake (husband)
Finn (brother-in-law)
Jade Jake Jr. (daughters)
Jacy, Lloyd, Kim Kil Whan (sons)

Introduced In Animated Short
Latest Appearance A Final Epic Adventure
Voiced by Niki Yang

Lady Rainicorn is a rainicorn and one of Princess Bubblegum's royal steeds, best friend, and companion. She is also Jake's girlfriend, and sometimes follows Finn and Jake on their adventures. She speaks only Korean, using English only when equipped with a Universal Translator (however, she is shown to have spoken a bit of English in "Lady & Peebles"). Princess Bubblegum and Jake are the only other beings in the Land of Ooo, besides Lady's parents, that are shown to understand Korean. In "Lady & Peebles," Lady revealed that she is pregnant: this was confirmed by Princess Bubblegum.


Lady is a long unicorn-like creature. She has rainbow colored stripes along her body, a bleach blonde mane, and big round eyes similar to Jake's. She also has a single white, sharply pointed horn. Her mom has a long body like hers, unlike her father. This means that she inherited her length from her mother, since in the episode "Her Parents" her mother and father don't find it odd that Jake can stretch or is long like the females before they know he is a dog.


Lady has the ability to fly, phase through walls, and can use her horn to change the color of anything she wants. In the episode "My Two Favorite People," Lady Rainicorn explains to Finn that she can fly because her body can intercept beams of reflected light from the sun and "dance around" on them. In the same episode, she is shown to live in a stable in the Cotton Candy Forest. Like her parents, she can fire a chromatic light beam from her horn, which seemingly hurts. Also, Lady can stretch longer or shorter as you can see when she lands. She may have limited Stretchy Powers. It is revealed in "The Creeps" that she can phase through walls and carry people while phasing. She can play the viola, like Jake. She also has the power to meld people into her being.

Personality and traitsEdit

Lady is laid-back and likes to interact with Jake and Princess Bubblegum. She is considered Princess Bubblegum's companion, like Jake is Finn's companion. She does not speak Korean in the original short; she only makes soft cooing sounds (or, near the beginning, hysterical screaming coos). However, Jake seems to understand what she says when he talks to her. She believes she is smarter than Jake. She may also have a fondness for Power Rings although she seems to have no fingers. Jake calls her "the rowdy queen," saying she'll try anything. Lady Rainicorn, unlike both of her parents, doesn't wear a Universal Translator. It is worth noting however, that Lady Rainicorn understands English, but either cannot speak it or chooses not to. This is obvious because of the fact that neither Jake nor Princess Bubblegum speak Korean very often when talking to her.



Jake w lady

ady Rainicorn with Jake

On the official website in Lady's description, it says Jake is her boyfriend and that they get along so well because of their common interest in the viola. This relationship began in the short when he and Lady Rainicorn were flirting and sharing interests. At the beginning of "Slumber Party Panic," she is shown being playfully chased by Jake, and later in the episode, they both seem to very much enjoy playing "Seven Minutes in Heaven" (which is a game where two people are locked in a closet together to kiss for 7 minutes). In "My Two Favorite People," Lady recalls a time when she and Jake ran naked through a farmer's field, causing Jake and herself to blush which may indicate some level of intimacy in their relationship. In "My Two Favorite People," Jake is torn between his desires to go adventuring with Finn and hanging out with his girlfriend. Lady later says she loves Jake "because he's an idiot" and that he makes her "feel like a genius." In "Video Makers," Jake gets very jealous when Mr. Cupcake flirts with Lady and becomes violently protective of her. The relationship appears to be rather serious, as he also was worried about his impression on her parents and even went to say he was studying Rainicorn history for their future children, which he did in "Paper Pete" to the point where he was so obsessed that he refused to help or acknowledge Finn's troubles, though he eventually gave up the information having gone way over his head. Lady's mother Ethel referred to Jake as hers and Bob's future son-in-law, hinting that she can see them getting married. In Go With Me, Jake takes her to the movie night and they ended up making out through the whole movie night. In the episode "Burning Low," Jake explains to Finn about "tiers" in relationships and is talking about his relationship with Lady Rainicorn in the process. Jake's implications in the explanation indicate that he is very intimate with Lady. In "Lady & Peebles," Rainicorn reveals in English that she's pregnant. In "Five More Short Graybles" she spots a baby bump on her belly when Jake put his thumb in it making her kiss him. In "Up A Tree" she is with Finn and Jake having a picnic. Later in the episode he takes her home as she kissed him. The two get married somewhere during the series and get five children, whom they take good care off.

Princess BubblegumEdit

PB and LR

Princess Bubblegum and Lady Rainicorn.

Lady is usually seen with or near Princess Bubblegum in the Cotton Candy Forest in the Candy Kingdom. In the "Animated Short," she shows great concern when the princess is abducted by Ice King, and even tried to rescue her from him. She is sometimes described as the princess' pet. In "What Have You Done?," Lady flew the princess to the Ice Kingdom so she could ask for Ice King's help in ending the plague in the Candy Kingdom, and showed great disgust at him when he mistook their pleas for help for flirting. Lady even speaks to him at this time, saying "Verily, you are a creature unworthy even of my lady's disdain." When Lady got injured by the eyes in "Lady & Peebles," Princess Bubblegum showed great concern for her. This shows that they connect and have a deep friendship.


In the beginning of episode "My Two Favorite People," Lady Rainicorn and Finn's relationship is awkward because of the language barrier. Attempting to fix this, she helps Finn and Jake recover the Universal Translator at the bottom of a lake guarded by Lake Knights. At first, Finn is worried that she is "too sweet" for the deadly adventure, but is quickly impressed by Lady Rainicorn's ability to fight. Finn also finds the translator's 'Old Man' voice option amusing, so he and Lady soon become friends. Jake gets rid of the Universal Translator, but any persistent issues Finn has with understanding Lady Rainicorn have yet to be mentioned.

Flame PrincessEdit

Flame Princess and Lady Rainicorn have been best friends with each other ever since Flame Princess first started dating Finn. She quickly replaced Princess Bubblegum's place as best friend giving her another reason to be jealous of her. Lady Rainicorn and Flame Princess enjoy talking to each other when they go on double dates with Finn and Jake. They also like to do things with each other alone like visiting each other, going on girls night outs, and just going out to have fun. When Flame Princess broke up with Finn, Lady Rainicorn hasn't been seeing Flame Princess too often.


Ethel Rainicorn is Lady's mother, who appears in "Her Parents." She is very shy to everyone but Jake, Bob, and Lady. She referred to Jake as her and Bob's future son-in-law. Bob Rainicorn is married to Ethel, and is Lady's father. Bob appears in "Her Parents", and is very impressed with "Rainicorn" Jake.

Mr. CupcakeEdit

Mr. Cupcake tries to impress Lady Rainicorn by flexing his muscles in front of her in "Video Makers." Although she blushes, she tells Jake not to take it seriously.


Lady, like you expect from a mother, is very close to her quintuplets. Because Jake is often busy with his "job" Lady mostly spends time with them, and acts as a good parent. When she took her kids to the amusement park in "Lady and the Kids" her children even came to rescue her, proving that they love their mother very much.

Episode AppearancesEdit

Major RolesEdit

  • Adventure Time
  • Slumber Party Panic
  • My Two Favorite People
  • Her Parents
  • What Have You Done?
  • Mortal Folly
  • Mortal Recoil
  • From Bad to Worse
  • Lady & Peebles
  • Jake the Dad
  • The Pit

Minor RolesEdit

  • Ricardio the Heart Guy
  • The Enchiridion
  • Party's Over La Señorita
  • Mystery Train
  • Video Makers
  • Too Young
  • Fionna & Cake (Gender-Swapped)
  • The Other Tarts
  • The Creeps
  • Holly Jolly Secrets Part 2 (Non-Speaking Cameo)
  • Go With Me
  • Burning Low (Cameo)
  • Five Short Graybles
  • Up a Tree
  • Five More Short Graybles
  • King Worm
  • Jake Suit
  • Time Sandwich (In Jake's Imagination)
  • Puhoy (As a Pillow)
  • The Suitor
  • All the Little People (As a Toy)
  • Earth & Water
  • Apple Wedding


  • Holly Jolly Secret Part 1
  • Card Wars
  • Little Dude
  • One Last Job
  • Five More Short Graybles
  • The Vault
  • Love Games


MK vs ATEdit


Horn Stab: Lady Rainicorn stabs the oppoment with her horn.

Color Laser: Lady Rainicorn shoots a color laser out of her horn.

Rainbow Blast - Lady Rainicorn will charge up a huge colorful laser blast onto the oppoment.

Colornado - Lady Rainicorn will fly around in cirlces a bunch of times really fast and eventually will make a tornado of colors which can hurt the oppoment just by her touching him.

Special SkinsEdit

  • Zombie: Lady Rainicorn as a zombie.
  • Preagnant: Lady Rainicorn with her preagnant belly.
  • Lord Monochromicorn (DLC): Genderswapped version of Lady Rainicorn.


Lady Rainicorn is just an assist in this game. She can be summoned when playing as Princess Bubblegum. When she is summoned, Princess Bubblegum jumps up on Lady's back and rides her. Lady will fly across the screen and stab the oppoment with her horn. The oppoment will be a certain color after she hits them, the color is only temporary and comes off after a couple seconds. The colors that the oppoment will turn will be any of the following: Red, Blue, Green, Yellow, Purple, Pink, or Orange.

future Edit

After Flinn came to live with her pure dealings mother.


  • Lady's toy version, as seen in "All the Little People", has a different color scheme than she normally has.
  • In one room of the candy castle, there are two pictures of Lady Rainicorn on the wall: One of her upper half, and one of her lower half.
  • Two Rainicorns (both of which look like Lady) appear in the Double Rainbow promo.
  • In the animated short, she spoke in a type of gurgling language instead of in Korean.

Other aspects of the Rainicorn people seem to be subtly based on Korean culture and history such as the Korean War, Korean games, and Korean delicacies.

  • In "The Real You," Princess Bubblegum is seen in the beginning with a yellow t-shirt with a red Rainicorn on it.
  • Lady Rainicorn has a gender-swapped counterpart in the Ice King's fan-fiction: Lord Monochromicorn.
  • Her favorite drink is iced latte as shown in "Video Makers."
  • In "My Two Favorite People" Jake refers to her as "the rowdy queen."
  • In "Apple Thief" Jake cooks Finn traditional Korean food that Lady Rainicorn taught him how to make.
  • Despite being based on a rainbow, Lady Rainicorn's body does not display any orange, but in the animated short she had orange on her body.
  • In "Burning Low," Jake implies that her stomach is 15 feet long.
  • In "Card Wars," it is revealed that Lady Rainicorn used to play Card Wars with Jake, and it made her mad that Jake always won and wanted to do nothing but play it.
  • She can speak some English words, as shown in "Lady & Peebles":"I am pregnant!"

As shown in "Lady & Peebles," five small dots and two larger dots appear on the heart monitor. Lady is pregnant, and the five dots indicate her unborn children. In "Up a Tree," Lady walks instead of flying to the picnic, implying that she is unable to fly while pregnant.

  • She has nightmares about half-dead corpses hurting her family.
  • In "My Two Favorite People," Lady is wearing power rings, even though she does not appear to have any fingers.
  • Lady's colors are in reverse order when compared to a normal rainbow.


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