Katie

"Life is short and time is swift."

- Katie

Katie is a yellow kitten with brown hair who debuts in who randomly appears in town once the player's gate has been opened and a visitor from another town has been accepted. In and, she wishes to be reunited with her mother Kaitlin. In, she asks the player to travel to a different town. Her Japanese name prior to literally means "stray child", which has been changed in later versions.

Katie first appears in alongside her mother, Kaitlin, and will appear in the player's town crying and wishes to be reunited with her mother. She will tell the name of the town where her mother might be, which is a town the player had previously visited. The player must go to this town with Katie, in which she and Kaitlin will be reunited at the Town Gate of the other town. Katie walks slower than the player and may get left behind or fall and cry. Upon doing this, she and Kaitlin will thank the player, and after a day, either she or her mother will send the player a present in the mail. If ignored, Katie will leave after a week since she first appeared.

Due to Nintendo Wi-Fi Connection being shut down as of May 20th, 2014, it is no longer possible to encounter Katie in town, and the presents she gives to the player are unobtainable.

Katie returns alongside Kaitlin in, though her role in this game is not that different from her role in. She will still appear in the player's town and ask to be reunited with her mother in a town the player had already visited. Afterwards, she or her mother will send the player a present in the mail.

Similar to, it is no longer possible to encounter Katie in town since the discontinuation of the Nintendo Wi-Fi Connection.

Katie returns in, though she is now alone and wishes to see the multiple towns of the world, telling the player that she wants them to take her to the player's friend's town. Unlike the previous games, it can be any town. She may also say which towns she has previously visited. The player must then guide her to the Train Station and take a train with her. After exiting the train, Katie will mention that the main reason she decided to follow the player to the other town is that she is uncomfortable traveling alone. A day later, she will give the player a thank-you present. Katie no longer falls down and cries, indicating her maturity.

There is a possibility, especially if the destination town has already received Katie on the same day, that Katie may drop her ticket upon boarding the train, causing her to jump off the train and pick it up. This event causes the player to leave her behind; however, the player will still receive a thank-you present from Katie the following day, saying that she just took the next train.

If ignored, Katie will stay in the player's town for the whole day.

Katie has a minor role in. She is seen in audience of the K.K. Slider performance, sitting with her mom.

Katie appears in the gardening event Fruit Party with Katie, which went from 4 May 2018 to 14 May 2018. She can also visit the campsite if the player crafts the Katie's Sakura Swing item, and reprises her role as a gardening host in the event Katie's Time Out.

Super Smash Bros. Brawl
Katie, along with Kaitlin, appears as a spectator in the Smashville stage, and as a trophy.

Super Smash Bros. for Wii U
Katie appears with Kaitlin once again in the Smashville and Town and City stages, however, Katie has a standalone trophy, unlike Brawl.