So these are the "extra characters" you find in Miitopia! I have already filled these roles and if they need to be brought in, they will be!
Ex Dark Lord: Darien (male)
Great Sage: Harvey (male)
King of Greenthorne: Duke (male)
Princess of Greenthorne: Jillian
Prince of Neksdor: Adrian
(Now) Prince of Greenthorne: Barron
Genie: Luxor
Youngest elf sister: Shauna
Middle elf sister: Sierra
Oldest elf sister: Serenity
Anyone else I forgot?