(user’s pick!)

Characters

Main

Martin Kratt (voiced by himself) is a zoologist who likes to name animals, allowing him, the team, and the audience to bond with the animal. His signature color, including his Creature Power suit, is blue. While he is childish, fun-loving, and likes to make jokes, he sometimes seems to know more about animals than Chris, as shown in "Red Panda Rescue" and "Fire Salamander." He appears to have become more skilled with technology throughout the series, as shown when he creates a near-perfect Creature Power disc in "The Erminator".

Chris Kratt (voiced by himself) is a zoologist who is the more methodical of the brothers. His signature color, including his Creature Power suit, is green. Unlike Martin, he prefers to take his time testing animals and their DNA to understand them better and save them from danger. Chris is organized, intellectual, and calm, but can be narrow-minded, as shown in "A Huge Orange Problem", where he insists that orangutans are incapable of thinking on a human level. He is also an experienced climber, although in "Flight of the Draco", he temporarily develops acrophobia after falling from a tree.

Aviva Corcovado (voiced by Athena Karkanis) is the engineer of the Wild Kratts team. She designs and builds the various gadgets that the team uses, including a matter transporter, which is used to transport equipment to them during expeditions, a miniaturizer, and a time machine. Her most notable inventions are the Creature Power suits, which grant their wearer the abilities of an animal through software disks that are inserted into the suits, and the Tortuga, a turtle-shaped jump jet and spacecraft which is used for transportation and as a home base. Though kind, she can be overconfident in her abilities and opinions and competitive. She competes with Zach in invention contests as well as against the Kratts and nature itself, most rotatably in "Cheetah Racer," where she bets that she can invent a land vehicle faster than a cheetah. Her Creature Power suit is purple, as shown in "Birds of a Feather," "Groundhog Wake Up Call," "The Amazing Creature Race," and "Praying Mantis."

Koki (voiced by Heather Bambrick in season 1-season 6 episode 18 and Sabryn Rock in season 6 episode 19 onwards) is a mechanical engineer and computer expert who works on the Tortuga HQ's computer database, researching animals and tracking the villains via satellite. She also manages the Tortuga's communications system, keeping in touch with Chris and Martin during their missions, managing signals from others who want to communicate with the brothers, and intercepting those sent by the villains. Her Creature Power Suit is golden yellow, as shown in "When Fish Fly", "A Creature Christmas", and "The Amazing Creature Race": this was also mentioned in the episode "Wolf Hawks", where she is called Gold Hawk.[3]

Jimmy Z (voiced by Jonathan Malen) is the pilot of the Tortuga who also uses his game controller to operate its matter transporter to send items and Creature Power Discs to the Kratts. He also sometimes helps Aviva build inventions by giving her what she needs. His Creature Pod and scuba gear are both orange and his tail attachment is red, as shown in "The Great Creature Tail Fail".

Minor

Paisley Planter formerly known as Paisley Paver (voiced by Julie Lemieux) is a businesswoman and the CEO of Pave Nature Incorporated. She believes that turning natural landscapes into factories and parking lots will create a better world for future generations, representing the issue of corporations building over natural habitats. While impatient, demanding, and bossy, she respects her intern, Rex. At the end of "Our Blue and Green World", she retires from villainy and becomes an ally to the Kratts in their efforts to preserve and protect nature. As a villain, she used to represent the issue of animal habitats being threatened by illegal logging and deforestation.

Villains

Zachary Varmitech (voiced by Zachary Bennett) is a robotics inventor who knew the Kratts when they were children and met Aviva at summer camp. He seeks to steal the Kratts' technology and attempts to develop robots and inventions by mind-controlling animals and using them as workers or selling them as products. For transport, he uses a jet for long-distance travel and a Zachbot for general travel. He is afraid of the dark, as seen in "Platypus Cafe", and dislikes others telling his Zachbots what to do. He represents the issues of animals being experimented on, being illegally captured and sold for money, and people abusing animals and forcing them to work against their will.

Gaston Gourmand (voiced by Zachary Bennett) is a gourmet chef who uses wild animals as ingredients in his dishes, especially those considered to be rare and endangered. He is clever and cunning and has a dark sense of humor, as he enjoys seeing the Kratts suffer through the dilemmas he puts them in. In "Outfoxed", he takes in a Basset Hound whom he names Nostril to help him track down animals. He represents the issue of chefs using wild animals as ingredients in dishes.

Donita Donata (voiced by Eva Almos) is a fashion designer who lives a luxurious lifestyle and travels by a pink jet or boat. She owns the clothing line Donita Donata's Live Jewelry of Nature and uses a "pose beam" to paralyze live animals to sell jewelry or clothing, also using robotic mannequins to capture animals for her. She represents the issue of fashion designers using animal products to make clothing.

Dabio (voiced by Cory Doran) is Donita's muscular and childlike henchman, who tries to help her design fashion, but often fails to satisfy her. Although usually portrayed as unintelligent, he is better at remembering information about animals than she is.

Rex (voiced by Cory Doran) is Paisley's former henchman, assisted her in her plots against the Kratts. He is not evil, but rather followed her out of a love for his job.