Koan is the youngest of the four Ayakashi Sisters who accompanied Rubeus to 20th Century Tokyo in search of the Rabbit and the Silver Crystal. This is the first animated depiction of the original manga character.
- Alice Poon (Episodes 54-57) - English
- Mary Long (Episodes 58-65, 79) - English
- Eden Riegel (VIZ) - English
- Wakana Yamazaki - Japanese
- Satsuki Yukino - Japanese
- Orly Katan - Hebrew
- In Sailor Gadget (TheBluesRockz Style) she is played by Princess (Bad), and Jeanette Miller (Good).
- In Sailor Zoe she is played by Cassidy (Bad), and Misty (Good).
- In Sailor Serena (1701Movies Style) she is played by Harper (Bad), and Sharon Spitz (Good).
- In Sailor Becky she is played by Miss Dalia (Bad), and Brittany Miller (Good).
- In Sailor Amber she is played by Ursula (Bad), and Zoe Drake (Good).
- In Sailor Rebecca she is played by ??? (Bad), and ??? (Good)..
- In Sailor Kim She is Played by Zelda (Bad) And Daisy (Good)
- In Sailor Brisby she is played by ??? (Bad), and ??? (Good).
- In Sailor Moon (Chris1702 Style) she is played by Lenoir (Bad), and ??? (Good).
- In Sailor Brittany she is played by Madame Medusa (Bad) and Orihime Inoue (Good).
- In Sailor Rukia she is played by Tremaine (Bad), and Mrs Mille (Good).
- In Sailor Mulan She is Played by Herself.
- In Sailor Sena She is Played By Lena Dupree (Episode 54-57) and Buttercup ()
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