Background characters are, as the name implies, characters that appear in the background of some stages, they will appear in a stage that correspond to their home universe (i.e [[Shy guys appear in Yoshi's Island). Note that background characters shouldn't be confused with stages hazards.
In Super Smash Bros.
Dream Land
- King Dedede appears floating in the background.
Saffron City
- A Pidgey appears flying in the background.
Yoshi's Island
- Shy Guys appears in the background.
In Super Smash Bros. Meele
Brinstar
- A statue of the chozo appear in the background.
Brinstar Depths
- Kraid appears in teh background of the stage.
Fourside
- An U.F.O appears in the background and can be boarded.
Yoshi's Story
In Super Smash Bros Brawl
New Pork City
- A statue of Pokey Minch from Earthbound appears in the right side of the stage.
Lylat Cruise
- Multiple ships appear battling in the background.
Smashville
- Villagers from Animal Crossing appear in the background.
Yoshi's Island
- For a third time, Shy guys appear in the background.