The world of Steven Universe is filled with many different and unique creatures. This is a list of known species.
Humans
Humans are the most populous sentient species on Earth. The humans in Steven Universe seem to be aware of the magical creatures and happenings around them and coexist with them.
- Barbara Miller
- Bill Dewey
- Buck Dewey
- Buddy Buddwick
- Chunk Truck
- Concrete Heat
- Connie Maheswaran
- Dashing Danny Doober
- Doug Maheswaran
- Greg Universe
- Greg's Aunt and Uncle
- Handsome Hank Hackleschmidt
- Harold Smiley
- Jamie
- Jane
- Jeff
- Jenny Pizza
- Kevin
- Kiki Pizza
- Kofi Pizza
- Lars
- Marty
- Mayor Dewey's Bodyguards
- Mr. Fryman
- Nanefua Pizza
- Onion
- Peedee Fryman
- Priyanka Maheswaran
- Quentin Frowney
- Ronaldo Fryman
- Sadie Miller
- Sour Cream
- Steven Universe (half Gem, half human)
- Suitcase Sam
- The Best Diner in the World's Waitress
- Vidalia
- William Dewey
- Yellowtail
Gems
Gems are a humanoid species of magical alien beings. They have many and varied abilities, but all share the trait of having a magic gemstone embedded somewhere on their body from which they can summon a special weapon. These also are the core of their being, as their bodies are just projections that have mass. Gems have the power to shapeshift and are genderless,[1] but use feminine pronouns. Steven is the first gendered Gem because he is half human. Gems also can have special abilities, such as Hydrokinesis, Phytokinesis, future vision, heat resistance, and many other abilities depending on the Gem.
Single Gems
- Amethyst
- Bismuth
- Blue Diamond
- Jasper
- Lapis Lazuli
- Pearl
- Peridot
- Rose Quartz
- Ruby
- Sapphire
- Steven Universe (half Gem, half human)
- Yellow Diamond
Fusion Gems
- Alexandrite
- Garnet
- Malachite
- Opal
- Rainbow Quartz
- Sardonyx
- Smoky Quartz ((one-fourth human, three-fourths Gem)
- Stevonnie (one-fourth Gem, three-fourths human)
- Sugilite
Forced Fusions
Corrupted and Broken Gems
Technically not a different species, Corrupted Gems were once normal Gems, but have been corrupted and/or have become broken, no longer capable of reasoning or returning to their original form. Reduced to this state by an orbital attack on the earth by the Diamonds, during the last days of the Gem War, Corrupted Gems no longer have the humanoid appearance that normal Gems share, instead they look more feral or monstrous.
- Big Bird
- Invisible Manta Ray (comics)
- Centipeetle Mother
- Crab Gem Monster
- Desert Glass
- Earth Beetle
- Gem Cave Creature
- Heaven Beetle
- Ice Monster
- Invisible Gem Monster
- Lighthouse Gem Monster
- Obelisk
- Plant Monster (comics)
- Rainbow Cloud Monster (comics)
- Slug Monster (comics)
- Smoke Monster
- Snowbeast (comics)
- The Slinker
- Water Bear
- Watermelon Tourmaline
- Worm Monster
Magical Creatures
Miscellaneous Magical Creatures
Sentient Plants
Non-Sentient Plants
- Magic Moss
- Magic Spike Vines ("An Indirect Kiss")
Corrupted Gems' Minions
Ornithological Monsters
- Unknown Giant Bird (mentioned in "Cheeseburger Backpack")
- Giant Bird Egg ("Cheeseburger Backpack")
Lights
Other
- Crystal Basilisk
- Crystal Shrimp
- Electric Skulls (pilot)
- Lion
- Tiny Floating Whale (cloud creation)
Non-Magical Creatures
Miscellaneous Non-Magical Creatures
Ungulates
- Steven Jr.
- Steven Jr.'s kids
- Cows (mentioned in "Too Far")
Other Mammals
- Raccoons
- Mice ("Onion Friend")
- Lions ("Buddy's Book")
- Koalas (pictured in "The New Lars")
- Sloths (pictured in "The New Lars")
Reptiles
Birds
- Seagulls
Aquatic Life
- Butt Lobster
- Blue Crabs
- Mask Island Fish
- Whales ("Lion 2: The Movie")
- Octopuses
Insects
- Ladybugs ("Log Date 7 15 2")