Mario Party GoGo!

Playable
 Default   Unlockable 
 * Mario
 * Luigi
 * Peach
 * Yoshi
 * Wario
 * Waluigi
 * Daisy
 * Toad
 * Toadette
 * Boo
 * Birdo
 * Dry Bones
 * Blooper
 * Hammer Bro.
 * T.T.

Non-Playable
... and many more in Super Mario (series)
 * Shy Guy
 * Toadsworth
 * Donkey Kong
 * Diddy Kong
 * Rosalina
 * Luma

Enemies
... and many more in Super Mario (series)
 * Goomba
 * Koopa Troopa

Bosses
... and many more in Super Mario (series)
 * Bowser
 * Bowser Jr.
 * Koopalings
 * King Boo
 * Koopa Kids

Battle Boards

 * Create-A-Board

More to come...