List of characters who know Ai Haibara's identity
Over the course of the series, 7 characters are confirmed to know that Ai Haibara is actually Shiho Miyano or Sherry. In their respective categories, characters are listed by the order they came to discover (or become suspicious of) Ai's identity.
Contents
Canon
Hiroshi Agasa
Ai Haibara revealed her true identity to Hiroshi Agasa at some point after he started adopting her.
Shinichi Kudo/Conan Edogawa
Ai Haibara told Conan Edogawa that she was a member from the Black Organization with the code name "Sherry", and also the creator of the drug that shrunk both of them. At first Conan didn't believe her words, but he was forced to take it seriously when she told him that she knew he was Shinichi Kudo, and that Hiroshi Agasa had been killed[1]. After finding out that Ai was just joking about Agasa's death, he became much calmer and thought that she was just trying to scare him, but only to get a casual confirmation from Agasa about her identity. This made him even much more frustrated than before, he yelled at Agasa, asking him "what is a girl from the Black Organization doing in his house"[2].
Pisco (Deceased)
Pisco found out that Ai Haibara was Shiho Miyano because he remembered her appearance when she was young. He later compared it with the data in the Black Organization's database to confirm about her identity, and kidnapped her[3]. However, he was killed by Gin before he can reveal her whereabouts.
Heiji Hattori
Conan revealed her identity to Heiji Hattori.
Shuichi Akai/Subaru Okiya
Vermouth
The Kudo Couple
Conan revealed her identity to his parents.
Non-Canon
Suspicious/Unconfirmed
Jodie Starling
Jodie Starling calls her "Sherry" at times but it was uncertain whether she actually knows about her de-aged state, or that she was once a member from the Black Organization.
James Black
James Black calls her "Sherry" at times but it was uncertain whether he actually knows about her de-aged state, or that she was once a member from the Black Organization.
Masumi Sera
Masumi Sera shows a mysterious interest in Ai Haibara. She somehow found out about Haibara's reflection on an online video that cannot be easily discovered. She later deleted a footage of this video, commenting: "Deletion. For data at least... is an easy task to accomplish."[4] She once asked Ran and Sonoko some information about Haibara[5], and also seemed to recognize Shiho Miyano from the video that Mitsuhiko fimed[6]. However, how much she knows about Haibara is still unknown, and it's still uncertain whether she has actually figured out about her identity.
