Suggestions by @kianwatson

Theodore Lindsay Templeton/Boss Baby

as Attack of The Legion of Doom in My Story Arc (My Version)

Danny Phantom (Character)

as Attack of The Legion of Doom in My Story Arc (My Version)

Jenny Wakeman

as Attack of The Legion of Doom in My Story Arc (My Version)

Krypto the Superdog

as Attack of The Legion of Doom in My Story Arc (My Version)

Superman (Clark Kent)

as Attack of The Legion of Doom in My Story Arc (My Version)

Luan and Charles

as Attack of The Legion of Doom in My Story Arc (My Version)

Luna Loud

as Attack of The Legion of Doom in My Story Arc (My Version)

Leni Loud

as Attack of The Legion of Doom in My Story Arc (My Version)

Batman (Bruce Wayne)

as Attack of The Legion of Doom in My Story Arc (My Version)

Lori Loud

as Attack of The Legion of Doom in My Story Arc (My Version)

Scorpion (Hanzo Hasashi)

as Attack of The Legion of Doom in My Story Arc (My Version)

Waluigi

as Attack of The Legion of Doom in My Story Arc (My Version)

Bubbles

as Attack of The Legion of Doom in My Story Arc (My Version)

Harley Quinn (Dr. Harleen Quinzel)

as Attack of The Legion of Doom in My Story Arc (My Version)

Spawn (Albert Simmons)

as Attack of The Legion of Doom in My Story Arc (My Version)

Buzz Lightyear

as Attack of The Legion of Doom in My Story Arc (My Version)

Bugs Bunny

as Attack of The Legion of Doom in My Story Arc (My Version)

Peter Griffin

as Attack of The Legion of Doom in My Story Arc (My Version)

Sonic the Hedgehog

as Attack of The Legion of Doom in My Story Arc (My Version)

Squidward Tentacles

as Attack of The Legion of Doom in My Story Arc (My Version)