|Associates:||Usagi Tsukino and friends|
|First Anime Appearance:||Is the Genius Girl a Youma? Brainwashing School of Terror|
|First Manga Appearance:||Act 2 - Ami - Sailor Mercury|
|First PGSM Appearance:||Act 2 - Ami Became a Friend|
|English Name:||Amy Anderson (later Amy Mizuno)|
|Actors:||Aya Hisakawa (anime), Chisaki Hama (PGSM), Karen Bernstein (1-82 dub), Lisa Balkman (83+ dub)|
Ami is a shy girl who doesn't make friends easily, preferring to be alone with her books instead. She studies very hard and, with her superhuman IQ of 300, regularly finishes at the top of national exams. Math and science are her favorite subjects, and she is aiming to become a doctor like her mother. Usually calm and level-headed, she is the voice of reason of the Senshi team. The others often rely on her plans and analyses, but they think she should "loosen up" more.
Ami is a kind and gentle person who dislikes quarrels and abhors harming innocent people. This trait has even been cited in the title of a Sailor Moon S episode, Believe in Love! Ami, A Kind Hearted Senshi, where she persuades Sailor Uranus and Sailor Neptune not to kill Hotaru. Like her comrades, her loyalty to Sailor Moon is unwavering, and she will sacrifice her life for her princess if necessary.
Ami lives with her mother in all the series' continuities, although she is often portrayed as not particularly close to her due to her mother's busy schedule as a doctor. Ami's father, a painter, is divorced from her mother. He sends her a birthday card every year, but she has not seen him for a long time.
Ami spends most of her time studying and fighting as Sailor Mercury, leaving little for hobbies. However, she enjoys swimming and playing chess, both of which she excels at. She also likes listening to music.
- In the first season, Ami and Ryo Urawa develop feelings for each other, but Ami denies them at first, saying she has no time for a boyfriend. Eventually the two go out on a date, but Ryo leaves Tokyo soon after and is not mentioned in the story again.
- In Sailor Moon Stars, Ami initially seems to be attracted by Three Lights keyboarder Taiki Kou, who is also very intelligent and a scientist type like herself. However, Ami's idealism and her faith in Sailor Moon clash with Taiki's cold reasoning and dislike towards the Senshi. At one point, when Ami (as Sailor Mercury) is losing a battle against a monster, Taiki actually leaves instead of helping her. They interact quite a lot during the season, but there is no romance, even implied, between them.
- In the somewhat infamous "Senshi/Shitennou pairing picture" drawn by Naoko Takeuchi, Ami is shown together with Zoisite. This pairing appears nowhere else in canon, but occurs in numerous fanfictions.