Toaru Kagaku no Railgun T Episode 21

Doppelganger (ドッペルゲンガー) is the 21st episode of Toaru Kagaku no Railgun T. It was broadcast on August 28th 2020.

Characters
By order of appearance:
 * Misaka Mikoto
 * Hazamaya Kana
 * Indian Poker Merchant (flashback)
 * Kinuhata Saiai (flashback)
 * Shokuhou Misaki
 * Shirai Kuroko
 * Uiharu Kazari
 * Konori Mii
 * Yanagisako Aomi
 * Tessou Tsuzuri (cameo)
 * Yomikawa Aiho (cameo)
 * Keitz Nokleben
 * Kouzaku Mitori
 * Dolly
 * Kuriba Ryouko
 * Accelerator (fantasy)

New Characters

 * Doppelganger
 * Chief
 * Leader
 * Yakumaru
 * Naru
 * Seike
 * Scavenger Liaison

Abilities

 * Mental Out - Shokuhou Misaki, Level 5
 * Liquid Shadow - Kouzaku Mitori, Level 4
 * Electromaster (Railgun-variant) - Misaka Mikoto, Level 5

New Abilities

 * Predator - Leader, Level Unknown

Locations

 * Academy City
 * School District 7
 * Judgment 177 Branch Office
 * School Garden (flashback)
 * School District 20
 * Shinasame University DNA Map Analysis Laboratory

Referbacks

 * Mikoto once again remembers her with Misaki at the beginning of the episode.
 * A scene from  is used as a flashback when Mikoto noticed that the merchant had disappeared from his usual place.
 * The information leaking from the School Garden that Kazari reports was previously mentioned in Toaru Majutsu no Index Light Novel Volume SS.
 * Scavenger refers to their on eliminating DA, in which they  due to Accelerator's intervention.

Differences in Adaptation

 * Both Kouzaku Mitori and Dolly appeared in person in this episode in their attires for the Jailbreaker Arc, unlike the manga where Mitori's mini Shadow Puppet only appeared alongside her voice.

Animation Trivia

 * On Scavenger's appearance at the end of in this episode, the ending theme plays over it, which resulted on the ending animation being replaced.