The Zeti are humanoid in of overall physical appearance, but possesses some unique key features. Common physical characteristics they share are five fingers with claw-like nails, two-toed feet with a claw-like appendage on each of their toes and heels, and tails. Each Zeti also possesses a number of striped horns on their head, with the number of the horns differing between each individual, though two appears to be the most common. The average height for a Zeti is about 118 centimeters (or roughly 3'10").

The skin color of the Zeti comes in vastly different varieties, which has been seen so far to be neon pink, yellow, blue, green-yellow, and white. They also possesses equally distinct hair colors, which can range from between sky blue, purple, and green, though it can turn gray from aging. Common color characteristics Zeti share are black hips and legs, and yellow sclera.

The individual Zeti can have their own unique physical proportions and features; Zavok is muscular and bulky with a fairly standard humanoid shape, Zazz is very lanky and thin, and Master Zik's head and body come together in an indistinguishable spherical shape. Additionally, the Zeti's tails and horns can come in different sizes and shapes as well, and Zeti like Zavok and Zazz can have spikes on their bodies.

The individual Zeti can have their own unique physical proportions and features; Zavok is muscular and bulky with a fairly standard humanoid shape, Zazz is very lanky and thin, and Master Zik's head and body come together in an indistinguishable spherical shape. Additionally, the Zeti's tails and horns can come in different sizes and shapes as well, and Zeti like Zavok and Zazz can have spikes on their bodies.