He is voiced by Derek Stephen Prince in the English Version.
Jeremy is a tall teenage boy with lightly tanned skin, spiked dark brown hair and brown eyes. He wears a forest green button-up shirt with two pockets on the chest and the sleeves rolled up over his elbows over a light blue T-shirt. He also wears light brown cargo pants held up by a dark brown belt with a silver buckle, and brown and dark green saddle shoes.
After returning from the Digital World, Jeremy changes into a pale yellow collared shirt with short sleeves, a dark green tie, light grey pants, and light brown shoes.
One year later, he wears a light cream button-up shirt with a green collar, breast pocket and trimmings with the sleeves rolled up over his elbows. He also wears light blue jeans with two big pockets, white and brown saddle shoes, and a red bolo tie set with a turquoise jewel slider set in a golden frame.
He calls himself "Mikey's eternal rival." He is afraid of heights, but is a capable leader and leads Fusion Fighters when Mikey is incapacitated. Jeremy has a severe crush on Nene Amano, which can sometimes lead him to make a fool of himself. He seems to have a special bond with the red Pickmon, and in battle, Jeremy often uses the Rare Star Sword. He seems to constantly agree with Angie about Mikey's rash behavior and crazy decisions.
- His English Voice Actor, Derek Stephen Prince also voices Veemon, Ken Ichijoji from Digimon Adventure 02 and Impmon from Digimon Tamers.