The Lion King/Batman

Heroes
Adult Simba as Bruce Wayne/Batman

Rafiki as Alfred Pennyworth

Mufasa as Commisioner James Gordon

Adult Kovu as Dick Grayson/Robin

Adult Kiara as Barbara Gordon/Batgirl

Gopher as Officer Renee Montoya

Villains
Scar as the Joker

Banzai as Oswald Chesterfield Cobblepot/the Penguin

Adult Nala as Selina Kyle/Catwoman

Timon as Harvey Dent/Two-Face

Shenzi as Dr. Pamela Lillian Isley/Poison Ivy

Zira as Dr. Harleen Quinzel/Harley Quinn

Pumbaa as Waylon Jones/Killer Croc

Reirei (from The Lion Guard) as Mary Dahl/Baby Doll