Coro Chan (1973) is the first original Sanrio character. Introduced in 1973, he is portrayed as a gentle and laid-back bear. Designed by
Yuko Shimizu who is also the original designer of
Hello Kitty. According to Sanrio's backstory, Coro Chan is a cousin of Hello Kitty's bear friend Thomas. His name comes from the
croquettes on his cheeks, which he might eat when he gets hungry.
Hello Kitty (1974) created the original design of Hello Kitty in 1974 is the best-known of Sanrio's characters. She is depicted as a white cat with a red bow and no visible mouth. However, the lead designer in charge of creating new design themes for most of Hello Kitty's history, since 1980, has been
Yuko Yamaguchi. Official character profiles list Hello Kitty's full name as , born in the suburbs of
London, England, on November 1. Her height is described as five apples and her weight as three apples. She is depicted as a bright and kind-hearted girl who is good at baking cookies and likes to play the piano. Hello Kitty is portrayed with a large family including her twin sister Mimmy, who wears a yellow bow, papa George and mama Mary.
UNICEF has appointed Hello Kitty children's ambassador and the Japanese government appointed her ambassador of tourism. Patty is a girl with braids who wears red overalls, and Jimmy is a boy with short unruly hair who wears blue overalls. who subsequently left Sanrio and went on to be an independent designer and picture book author. The character setting was based on a visit to Kansas City in the United States where Sanrio had an affiliate company. The designs were also inspired by American TV shows and the authors
Joan Walsh Anglund and
Richard Scarry. The character that would become Patty started out as a notebook doodle where she was seen from the back, and then came to be used unnamed in a series of designs using the slogan "love is". When the boy character was added he was originally known as "Jim" before the duos name was finalized as Patty & Jimmy. Merchandise with the characters inspired by American school life, like book straps, lunch boxes and ring binders became popular. Picture books and a music
EP with the characters were also released in the 1970s. The popularity of Patty & Jimmy was on par with that of
Hello Kitty in the 1970s, but their popularity declined in the 1980s. Sanrio has since released products with Patty & Jimmy as part of retro collections.
Little Twin Stars (1975) also known as in Japan are a pair of angel-like characters. The younger brother with blue hair is , and the older sister with pink hair is . Originally designed by Yōko Matsumoto (松本庸子) who also designed
My Melody. They were initially created for a 1975 Christmas promotion and their birthday is December 24,
Christmas Eve. Drawing inspiration from Christmas and winter themes, early sketches had the characters wearing warm coats and winter scarves, before Matsumoto settled on stars as the motif. Because they came from the sky, she gave them white angel style clothes. Early Little Twin Stars branded products, like those for other similar Sanrio characters of the era, were items marketed to young girls, like
stationery and accessories. In the late 70s Sanrio also began publishing
picture books with Kiki and Lala, illustrated by Matsumoto and others. Since the inception of the Little Twin Stars, new designs have continually been created, following trends of the times. In the original 70s designs Kiki's hair was brown and Lala's yellow. In the 80s the designs became more pastel colored, and this is also when their hair colors settled into being predominantly blue and pink. In the 90s their faces were modernized, and designs were rendered in 3D
CGI, and in the 00s there was a retro return to the styles of the 70s and 80s. Little Twin Stars have previously been included in video games with other Sanrio characters, but in 2018 the first
mobile game app featuring them exclusively was released for
iOS and
Android. Titled ''Kiki & Lala's Twinkle Puzzle
(キキ&ララのトゥインクルパズル'') it is a
tile matching puzzle game and was developed by
Imagineer. It incorporates illustrations from a 70s picture book with the origin story of the characters. When My Melody debuted, she was portrayed as Little Red Riding Hood. My Melody can be found on children's toys and merchandise (from jewelry to household items). My Melody was first released in 1975 and the first related merchandise was released at the end of that year. At first, she mainly was marketed toward young girls, but like Hello Kitty her popularity has increased among women and men of all ages, especially in
Asia. In the late 1980s, My Melody's popularity waned, and the only items produced were stationery and candy. According to a reader survey published in the
Strawberry Newspaper (a magazine published by Sanrio) in 1996, My Melody came out amongst some of Sanrio's most popular characters and as a result, due to popular demand, standard merchandise started re-appearing beginning in February 1997 featuring the original red hood. Items with the pink hood were re-released in 1999; as of 2000, there were items released with multiple color hoods. On April 3, 2005, an anime series based on My Melody and her friends and produced by
Studio Comet started to air on
TV Osaka and
TV Tokyo television stations, called
Onegai My Melody (おねがいマイメロディ), which aired from 2005 to 2008. This
anime also spawned a video game for the
Nintendo DS titled
Onegai My Melody: Yume no Kuni no Daibouken (おねがいマイメロディ~夢の国の大冒険~). The game relies heavily on a feature of the Nintendo DS console which requires the player to blow air into the microphone of the unit. The player guides My Melody through timed levels by jumping and using her umbrella to float around and avoid enemies. The game also features unlockable content as well, such as music, images, and mini-games. My Melody also appears in the Sanrio Digital and Dream Cortex series,
The Adventures of Hello Kitty & Friends. She, however, is mouthless there, and her rival
Kuromi doesn't make an appearance. In 2007, a second game was released for the Nintendo DS, titled
My Melody Angel Book ~Denshitechou & Enjoy Game~ (マイメロディエンジェルブック~電子手帳&エンジョイゲーム~). The game's primary function is as a day planner designed for young girls to keep track of appointments, class schedules, and mini diary entries. On March 1, 2008, Mattel released a Barbie doll named "My Melody". The My Melody Barbie doll featured a Barbie doll inspired by the My Melody character, with the character's face included in different parts of the doll's fashion and accessories. In an homage to the character's rabbit ears, the doll's hair is styled in pigtails. On March 26, 2008, a Japanese music compilation album titled "I Love 30 – My Melody" from
Tearbridge Records was released with My Melody wearing the original red hood drawn in various artwork styles by Groovisions.
Rei Sakuma has been the regular voice of My Melody in Japan since 1989. My Melody has also been turned into a
Pullip doll with two versions; originally released in 2008 and the latest one in 2016. In 2014, Sanrio celebrated the character's 40th Anniversary by creating a special line of merchandise where she is given a different hood where her ears are dropped down and wears either a bonnet or a flower pin and sometimes depicted with eyelashes. Sanrio Puroland honored the 40th anniversary of the character by creating an indoor ride called "My Melody Drive" where visitors are visiting Mariland and encounter My Melody and her friends including Kuromi who attempts to ruin her day. My Melody is also seen in collaboration merchandise with other non-Sanrio series, such as one with
Sailor Moon in 2017. In 2019, My Melody became a radio DJ on
Tokyo FM with a show called "My Melo Therapy" (マイメロセラピー) where she answers questions from listeners and offers advice. A book with advice from the show was released in 2022. In the 2020 web series
Hello Kitty and Friends: Supercute Adventures, My Melody is one of the main characters where she is voiced by Michelle Marie. In 2010,
The New York Times said that My Melody was "moderately successful" in terms popularity, but showing no signs of reaching the global popularity of Hello Kitty. In 2025, she was given a catchphrase "Melly-melly" for the Western markets beginning with a video celebrating the character's 50th Anniversary and a music video called "My Melody Birthday Song". Beginning in 1989, My Melody has been regularly voiced by
Rei Sakuma in Japan beginning with the 1989 anime short "My Melody no Akazukin". In the Western-market, Michelle Marie became the official voice of the character beginning with "Hello Kitty and Friends Supercute Adventures" web series. A stop-motion
Netflix anime series
My Melody & Kuromi, featuring both her and her rival Kuromi, was released worldwide on July 24, 2025, to celebrate the character's 50th anniversary. Spinoff characters from My Melody include
My Sweet Piano, one of her closest companions,
Kuromi, her rival/friend, and
Little Forest Fellow, her cousin.
The Strawberry King (1975) is a humanoid character with a large red strawberry for a head. He was created as an alter-ego of Sanrio founder
Shintaro Tsuji, and has the same birthday as him, December 7. Official character bios describe him as "the king of the beautiful and peaceful Strawberry Kingdom" who "spends his days bringing messages of peace and friendship to all". The Strawberry King rarely appears on merchandise, but every month a message from the Strawberry King (similar to an
editorial) has been published in Sanrio's
Strawberry Newspaper. A book with a collection of some of these messages was published in 2007.
Big Challenges (1978) is a green crocodile, described by Sanrio as a "unique crocodile-kun" who "puts on an innocent face, but you can see that he's laughing, right?" In 2018 the character came to the attention of English language Twitter after being featured in the
Have You Heard About This Boy fanzine. Big Challenges makes an appearance in the 2023 video game
Hello Kitty Island Adventure. Writing about the game,
Oricon News described Big Challenges as a "rare" and seldom heard of character. She is the
protagonist of
Button Nose, the first anime television series produced by Sanrio. Button Nose is portrayed as a sweet and lively girl who makes strawberry jam and likes cookies. Sanrio's profiles say her birthday is January 5 and that her real name is Trish, but she is called Button Nose because her nose is small and round. The original design for Button Nose was created by and the character was introduced in 1978. The store is shaped like a strawberry and was based on the fictional home of Button Nose. It was originally planned to be in place for a limited time, but due to positive customer response the store remained in operation until 2011. Characters and items based on Tuxedo Sam were included in the Sanrio edition of
Tamagotchi Meets from 2019 as well as the Sanrio expansion for the Tamagotchi Smart from 2022. In 1982, there were over 150 Tuxedo Sam items available, and he was the 4th most popular Sanrio character, after
Hello Kitty,
Little Twin Stars, and
My Melody. In 2010
The New York Times described this character as "moderately successful" in terms of popularity but showing no signs of reaching the global popularity of Hello Kitty. ==1980s==