O, Mouse!

Synopsis
When one of Gotham’s former heroes returns to his old stomping grounds to settle a score, both Batwoman and Commander Kane find themselves on the defensive. Meanwhile, Alice has uncovered what could finally take down Batwoman, but she is losing hold on her henchman Mouse and Hush, sending her spiraling into her most wicked self. Luke immediately focuses on finding a way to protect Batwoman from Alice, and Mary has a chance to be the sister Kate has needed all along. New information surfaces, forcing Julia to warn Sophie about the person pulling the strings. And in a final standoff, when Commander Kane refuses to retreat from his war on Batwoman, Kate may find herself more than heartbroken by her father's choices.

Main/Featured Characters

 * Bat Team
 * Batwoman (Kate Kane)
 * Luke Fox
 * Mary Hamilton
 * Crows Strike Team
 * Tuxedo 1 (Julia Pennyworth)
 * Sophie Moore
 * Jacob Kane

Villains

 * Arkham Asylum
 * Alice (Beth Kane)
 * Mouse (Jonathan Cartwright)
 * Hush/Bruce Wayne (Tommy Elliot)
 * Hush/Bruce Wayne (Tommy Elliot)

Other Characters

 * Dana Dewitt
 * Dana Dewitt
 * Dana Dewitt
 * Dana Dewitt
 * Dana Dewitt

Organizations

 * Crows Security
 * Gotham City News
 * Wayne Enterprises
 * GCPD
 * Gotham University
 * Gotham University
 * Gotham University

Species

 * Humans
 * Bats

Objects

 * Bat-Gadgets
 * Bat-System
 * Batsuit
 * Grappling Gun
 * Batarangs
 * Bo-staff
 * Kryptonite
 * Kryptonite
 * Hush Mask
 * Lucius Fox's Glasses
 * Lucius Fox's Journal
 * Knives
 * Guns
 * Alice in Wonderland
 * Guns
 * Alice in Wonderland

Locations

 * Earth-Prime
 * Earth
 * USA
 * Gotham City
 * Wayne Tower
 * Batcave
 * Gotham University
 * Crows Security Headquarters

Trivia

 * This is the only season finale in the 2019–2020 season to end with 20 episodes due to the 2019-2020 Coronavirus Pandemic.
 * This is the last episode to feature Ruby Rose.