Lezerem has long, blonde hair that passes his hips, pale skin, amber eyes, and a smug disposition. His clothing consists of a white and gold jacket and black slacks, along with a small array of necklaces. There is also two viles, green and blue, attached to what appears to be a small, white belt holding them.
His left ear also appears to be pierced, and there is a small pocket on his jacket, which seems to be holding a pen(?). He wears a pair of dark, brown-ish rimmed glasses.
In Demon Gaze II, he has put on a lot of weight, and now he wears a green jumpsuit.
The elf is extremely eccentric and hyperactive, making him difficult to keep up with at times. He seems both overly-friendly and very vengeful at the same time, as shown when Cassel "eats his ice cream," prompting him to act rather buddy-buddy with Oz while also taking revenge on the weapon shop's owner.
- It is revealed by Pinay that Lezerem is a lightweight, as she states, "How many times do you have to get naked before realizing you're a lightweight?!"