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Hero Overview

I'm Keroppi, and these are all of my friends. And this place is Frog House on Donut Pond.
~ Keroppi introducing himself and his friends to Twinkle.
♫ Jumping up and floating down,
We laugh and sing, we're having fun!
Bouncing very high to the clouds up in the sky.
Softly falling, floating landing safely on the flower petals
Those happy smiling friends, happy times.
When your heart is feeling sad, friends will bring you cheer.
Saying words of love and care, smiles just for you. Ooh, ooh!
Kero Kero Keroppi, singing, laughing, having fun.
Kero Kero Keroppi, let's go out and play.
Kero Kero Keroppi, Keroleen and her friends will come.
Kero Kero Keroppi, every day is fun. ♫
~ Lyrics from Keroppi's theme song.

Keroppi (けろけろけろっぴ, Kerokerokeroppi) is a fictional character created by Sanrio in 1988 and is the main protagonist of Keroppi and Friends. He lives in Donut Pond with his friends. He is voiced by Jill Frappier (who also voices Luna from Sailor Moon) in Keroppi and Friends, and Sarah Hauser in The Adventures of Hello Kitty & Friends.


Keroppi is a frog with big eyes and a V-shaped mouth, and he has a white and red stripped shirt.


Keroppi is an adventure-loving frog who lives with his family at his house on the edge of Donut Pond.

Fictional Background

Keroppi's family name is Hasunoue, which means "on lotus" in Japanese. The name "Kerokerokeroppi" translates from Japanese to English as "morning glory." He enjoys swimming, baseball, playing with boomerangs, and singing. He lives with his sister, his brother, his mother (a housewife and a professional chef), and his father (a doctor) in a house on the edge of Donut Pond, where a Wooden bridge connects the side of the pond and the island in the center.

Keroppi's Friends and Family

  • Kevin (Pikki) - Keroppi's triplet sister. She helps out at their mother's restaurant.
  • Curtis (Koroppi) - The youngest of the triplets. Everyone mixes him up with Keroppi.
  • Keroppa - Keroppi's father. He's a doctor and can cure anyone.
  • Keroma - Keroppi's mother. She is a very good cook and owns a small restaurant.
  • Kerojee - Keroppi's grandpa.
  • Kerobah - Keroppi's grandma.
  • Keroleen - Keroppi's girlfriend, and Keroppi's only girl, is a natural peacemaker. She likes collecting clothes and cooking, and she is voiced by Tracey Hoyt.
  • Junk (Ganta) - Keroppi's biggest-sized friend, who can transform himself into a rock. Though he thinks he is strong, he is afraid of the dark and heights. He is voiced by Jeff Lumby.
  • Soak (Kyorosuke) - Keroppi's tallest and thinnest friend, can see things over half a mile away. He can swim underwater. He is voiced by Julie Lemieux who later voiced Renée Ratelle from Jacob Two-Two, Coochie and Coo in Rolie Polie Olie: The Baby Bot Chase.
  • Newton (Noberun) - He is a deep thinker and loves doing experiments. He is not much of an athlete. He is voiced by Elva Mai Hoover.
  • Keroppe - Does not live in the Donut Pond originally and is a target of many Practical jokes.
  • Den Den - A snail and Keroppi's good friend voiced by Elva Mai Hoover.
  • Ruby (Teru Teru) - A sunshine doll who can predict weather. She is voiced by Nadine Rabinovitch.
  • Chippi - Keroppi's little cousin, who loves strawberries.

Heroic Roles

  • In "Let's Play Baseball", he plays baseball with his friends against the Gamma's to give Soak and Curtis back the field.
  • In "Let's Be Friends", after Junk squishes Wink the snake, he takes him to his house to make him feel better, and becomes friends with him. Later in the episode, he and his friends try to save Keroleen with help from Wink.
  • In "The Big Adventure", he goes to Pokopon's village with Ruby and Den Den to get his belly button back when the cloud people steal it. Later, he dives into the water when Pika loses his drum.
  • In "The Adventures of The Coward Prince", after he gets send to the Kingdom of Aquarius when he gets blamed and kicked out by the movie man and the bullies, he helps Aaron get the sword, and helps him learn about true courage.
  • In "The Frog's Secret House", after he and his friends get lost in time, and they spend the night with their alternate friends (Kerada, Meroleen, Speedy, Isaac, Nelson), they build a tree house for them which they've done a marvelous job.
  • In "The Christmas Eve Gift", he helps a little star named Twinkle regain her confidence to shine once again.
  • In "Find the Pink Mushroom", when Curtis loses his voice, he cures him by setting off to two mile tunnel with Ruby and Den Den, and they find the pink mushroom with help from Marcus.
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