Grandfather
Grandfather is an ancient demon who is close friends with Bowser. His evil plot was to turn the entire universe's population into undead zombie Heartless which would merge into a giant mutated zombie that could cross dimensions and destroy all other dimensions. Grandfather was eventually decommissioned and turned into a feeble old man by Numbah Zero, Nigel's dad.
Trivia[]
- Grandfather will become Tino Tonitini's enemy in 'Tino's Adventures of Codename: Kids Next Door - Operation: Z.E.R.O.
- Grandfather will become Thomas and Twilight Sparkle's enemy in Thomas and Twilight Sparkle's Adventures of Codename Kids Next Door: Operation Z.E.R.O..