Arf, Vita, Teana, Caro, Nove and Agito use 'atashi' frequently.

Nagisa from Chou Kuse ni Narisou says this even when she's disguised as a boy, which undermines the disguise.

Osaka from Azumanga Daioh uses atashi (rather than uchi, which would be expected from the Kansai dialect).

She started to cut her own hair short and adopt a boyish personality to protect her helpless sister from bullies.

Yuzuru Nishimiya from A Silent Voice used to go by atashi as a little girl with long hair who wore dresses.

If a male character uses atashi it is almost certainly meant to imply that he's Camp Gay. Amusingly, its casualness also makes it a good choice for characters who are confident about themselves and their femininity, especially if they're to be put in contrast with a 'watashi'-using Shrinking Violet. It is most commonly used to make a female character sound very casual, which makes it perfect for tomboys who aren't tomboy enough to use the male pronoun 'boku'.

Amethyst in the Japanese dub of Steven Universe.Ītashi あたし Informal, assertive, yet feminine version of 'watashi'.Used by a nameless townswoman in the town of Paloom in Final Fantasy II who, upon only having met the protagonist, immediately asks him to settle down there with her.It's somewhat justified since she's fairly childish and is the daughter of Monokuma. Monophanie in Danganronpa V3: Killing Harmony uses this despite her feminine appearance and personality.The Villainous Crossdresser Flea also uses atai. Although she's normally a Third-Person Person, Ayla from Chrono Trigger uses this before you name her.'Peppy' villagers in Animal Crossing use this pronoun.It's worth noting that she's transgender in Japanese. Vivian in Paper Mario: The Thousand-Year Door.

The Gerudo in The Legend of Zelda often use atai.Cirno, Touhou Project's resident baka, uses this, as a sign of her childishness, tomboyishness, and stupidity.Especially fitting in the overall Sanrio merchandise, in which she has a Japanese Delinquents theme. Kuromi, the Dark Magical Girl of Onegai My Melody.Anego, the leader of a gang of female high school delinquents from Magical Witch Punie-chan.The translation patch translates this as her having a rude, tomboyish attitude. Most of the Iron Town women in Princess Mononoke, who are former prostitutes.Nago, the Camp Gay cat- umbrella- thing from BlazBlue.They then get the mature Nodoka to lend her voice, which results in Yui spacing out a bit when she hears Nodoka of all people using that pronoun. But when it's pointed out that Ton-chan probably is female, they go with atai. Mio first suggests doing a reference to Wagahai wa Neko de aru below, although Yui thinks oira would be more fitting. When the girls in K-On! are coming up with ideas for a recruitment video, one plan is to do it from their pet turtle Ton-chan's point of view.

Blade and soul stuck in first person