Humans are a race of beings that exist in Planet Popstar's galaxy. They appear to be rarer other races such as the Fairies, the People of the Sky, or the Kirbys. As of now, Adeleine is the only known human to exist in the Kirby series outside of cameos, who presumably still lives peacefully in Popstar.
This was the first game in the series that featured an original human character. Adeleine (known as Ado in this game), a young artist, is targeted and later possessed by Dark Matter. She is fought by Kirby at the end of Cloudy Park. She is given no real backstory, but is later shown bonding with Kirby and the Animal Friends at the end of the game.
Several other human characters from other Nintendo games make cameo appearances in the game as well, but are not regular inhabitants of Dream Land. These include Chao, Donbe, Hikari, Professor Hector, and Samus Aran.
In Kirby 64: The Crystal Shards, Kirby encounters Adeleine again, who is studying in the forests of Popstar. She is possessed by Dark Matter once again after she finds a Crystal Shard sitting by her canvas. She joins up with Kirby and Ribbon after she is freed from Dark Matter's ghastly presence.
Kirby is also able to travel to a frozen planet named Shiver Star in this game. Fans note its striking similarity to our Earth, as the seven continents and orbiting moon are visible. Additionally, the game's Japanese website mentions that Shiver Star's inhabitants had to leave the planet, leaving factories and empty buildings behind. It is possible that Shiver Star used to be Earth-like before its climate change.
Upon suggesting the anime, Kirby's creator, Masahiro Sakurai, established that Kirby: Right Back at Ya! would not involve human characters. Even so, a few managed to slip into the episode Dedede's Monsterpiece as sculptures and paintings (all of which are parodies of classic artwork). The NME Salesman rents them to King Dedede, saying that they're from another planet--it is implied that this planet is Earth. Tiff refers to the humans in the art as aliens.
The NME Salesman is a humanoid creature, though his body ends at the waist and he has Kirby-like feet.
- Despite Kirby's official height being eight inches, Adeleine is shown to be only slightly taller than Kirby.
- In addition to this, Samus Aran is only shown to be about twice Kirby's height, despite being a tall woman in the Metroid series.