The Sluissi are the indigenous sentient species of the planet Sluis Van, located in the Outer Rim Territories. While their bodies above the waist are humanoid, their lower halves are serpentine, long and heavily muscled. Sluissi are noted for their calm temperament, aversion to rushing and impatience, compliance to protocol, no matter how trivial, and their technical aptitude. Like most reptiles, Sluissi can use their forked tongues to sense heat.

Sluissi's upper torsos are similar to a human's, with two arms, each with four-fingered hands. Their fourth finger is an opposable digit. Their arms have almost winglike extensions of skin, which aid their movement while they are flat on the ground. The bottom half of their body is similar to a snake's, with a long, heavily muscled, singular tail. Sluissi have round black eyes and a swooping, hoodlike fold of tough skin at the back of their heads. They have forked tongues that aid their sense of smell. Brazen Squirrel weighs in at 65 kilograms and 1.7 meter tall.