:* - Multiplayer only
- Happy Face - The ruler of SmileyVille, and the main hero.
- Angry Face - Happy's power-up.
- Girly Face - Happy's cousin, and character when Help Mode is activated.*
- Ecaf Yppah - Happy's nice twin, and secondary villain.*
- Frowny Face - The main villain that despises Happy, and brainwashes SmileyVille's residents to prove it.*
- SmilleyVille Residents - The main enemies of the game.*
- Ph34r - A ninja Smiley that works for Frowny.
|Happy Face/Angry Face | The Man In The Black Cloak | Kirby | Ecaf Yppah | Girly Face ||
|Bus Driver/Rich | The Red Man | Shy Bandit | Meta Knight | Marx|
|Ghostly | Tabuu | Frowny Face | Ef-Ex | Ph34r|
|Pac-Happy Face | Happy Face D.I.Y. | Happy Face's Fantendo Smash Bros. | Super Happy Face | Super Happy Face 2|