Name: Jake Berenson  
Age: 13 - 16 (Series Time Span)
Gender: Male
Best Friend: Marco
Family: Dad - Greg - Pediatrician
            Mom - Nikki - Writer
            Tom - Brother - Human-Controller
            Rachel - Cousin - Animorph
Battle Morph: Siberian Tiger
Morphs: Golden Retriever (Homer), Green Acole Lizard, Siberian Tiger, Peregrine Falcon, Flea, Wolf, Trout, Dolphin, Seagull, Lobster, Black Ant, Cockroach, Fly, Termite, Skunk, Great Horned Owl, Bat, Spider Monkey (unusable), Jaguar (unusable), Racehorse, Parrot, Hammerhead Shark, Rhinoceros, Mole, Mosquito, Leeran, Tyrannosaurus Rex (unusable), Dragonfly, Security guard (human), Anteater, Baby Seal, Polar Bear, Howler, Giant Squid, Chimpanzee, Eel, Hork Bajir, Squirrel, Killer Whale, Charger horse (unusable), Honeybee, Beaver, Anaconda
NickNames: Fearless Leader, Prince Jake
Personality: Responsible. Reluctant.
Group Role: Jake is the Responsible, reluctant leader of the Animorphs. He's the one who makes the life and death decisions. He's the one who uses his army of Animorphs, wisely and cleverly. He knows each and every one of his warriors, and uses each in their own way, using their strengths and weakness in the war against the Yeerks.

He never wanted to be the leader, it was just something he was chosen to do. He's the 'Unofficial' Leader of the Animorphs.