Zoanthropes

Lincoln Loud the Wolf
Ronnie Santiago the Rabbit
Clyde "Bakuryu II" McBride the Mole
Rita Loud the Kangaroo
Lynn Loud Sr the Tortoise
Howard McBride the Polar
Harold McBride the Grizzly
Lucy Loud the Bat
Chloe the Cat/Half-Beast
Haiku the Crow
Polly Pain the Panther
Giggles the Elephant
Tabby the Woodpecker
Sid Chang the Spurious (gains this power via infection rather than dormant DNA)
Lori Loud the Jaguar
Leni Loud the Cheetah
Luan Loud the Hyena
Luna Loud the Falcon
Sam Sharp the Eagle
Lana Loud the Frog/Toad
Lola Loud the Brown Fox
Lisa Loud the Serpent
Bobby the Toro/Bull
Lynn Loud Jr the Tiger
Chaz the Boar
Benny the Spider
Francisco the Stallion
Winston the Peacock
Skippy the Honeybadger
Hank and Hawk the Gorillas
David the Chimpanzee
Rusty and Rocky the Hedgehog
Zach the Porcupine
Margo the Rhino

Others
Ryuzen "Bakuryu I" Shikigami the Mole (Clyde's Ninja-sensei)
Koryuu the Iron Mole/Rat (An android/cyborg and a clone of Bakuryu I)
Fang the Wolf (Lincoln's mentor who found him and helped him better control his Zoanthrope powers for a few months after the explosion)
Alan Gado the Lion (Second Leader of the group that rebels against Tyrion. A mercenary and Lincoln's second mentor)
Shina the Leopard (Gado's niece/adopted daughter)
Jennifer "Jenny" Burtory the Vampire Bat (An English supermodel with an ageless beauty. She is also a superspy and Gado's lover. Lucy and Lola admired her)
Hajime Buzusima the Chameleon (A member of Tyrion that made horrible experiments. A mad scientist)
Stun the Beetle (A mutated man resulted by a failed Zoanthrope experiment. Formerly Steven)
Xion Tetherby the Unborn (Swedish grandson of the rich Tetherby. He caused Sid to become the Spurious. His Zoanthrope is a combination of a mantis/cockroach demon)
Kisame Hoshigaki the Shark (Another failed experiment that seeks revenge by joining Gado. Wants equality and friendship between Zoanthrope and humans. Father of Koi and Kana)
Koi and Kana the Merfolk (one is a koi mermaid while the other a golden mermaid)
Ryoho the Dragon (A monk from a temple that has the ancient Dragon sealed within him. A natural born and Mana's guardian.)
Mana Kitsune the Nine-Tails (Daughter of the late Kurama Kitsune who is also a natural born zoanthrope of the Nine-Tails. Has the power to seal the Dragon of Gaia in Ryoho)
Kronus the Penguin/Phoenix (A prince of a small kingdom of Menagerie. The successor and soon ruler of the kingdom of Zoanthropes.)
Yin Lynn the Tiger (Lynn's evil clone as a manifestation of her insecurities, pride and over-competativeness. Holds hatred to the original but not enough to kill her.)
Uranus the Chimera (An artificial human that is the manifestation of destruction. However, she seeks for a purpose in life and was convinced to turn a new leaf by using her power for good. She is a combination of a Minotaur, werewolf, and lion. She is Chloe's younger clone/sister but has a body older than her proginator which confuses a lot of characters.)

The rest of the loud characters are either human or unknown Zoanthropes.