Batman: The Brave and the Bold Episode 1.25: Mayhem of the Music Meister!

Individuals

 * Batman
 * Green Arrow
 * Aquaman
 * The Music Meister
 * Clock King
 * Gorilla Grodd
 * Black Manta
 * The Joker
 * Two-Face
 * King Tut
 * Psycho-Pirate
 * Crazy-Quilt
 * Calendar Man
 * Mad Hatter Imposter
 * The Scarecrow
 * Tweedledee
 * Tweedledum
 * Louie the Lilac
 * Kite Man
 * Egghead
 * The Cavalier
 * False Face
 * Shame
 * Felix Faust
 * Babyface
 * Sportsmaster
 * Fun Haus
 * The Archer
 * Polecat Perkins
 * Catwoman
 * Robin
 * Killer Moth
 * Plastic Man
 * The Atom
 * The Penguin
 * The Riddler
 * Bane
 * Catman
 * Huntress
 * The Bookworm
 * Copperhead
 * Tiger Shark
 * Zebra-Man
 * Polka-Dot Man
 * Gentleman Ghost
 * Kanjar Ro
 * Metamorpho
 * The Terrible Trio
 * Guy Gardner
 * Etrigan
 * Doctor Polaris
 * Scream Queen
 * Weather Wizard
 * Solomon Grundy
 * B'wana Beast
 * The Brain
 * Booster Gold

Organizations

 * STAR City Police Department
 * STAR City Bank

Vehicles

 * The Music Meister's Note cart

Locations

 * Arkham Asylum
 * Gotham City
 * STAR City
 * London
 * Moscow
 * The Great Wall of China

Weapons

 * Batarang