Gil is a black panther of apparent middle age, an average height, and a slender build. Being a black panther, he has black fur but has a unique white ear that contrasts with his black fur. He has large, elongated, oval eyes with small irises, thick eyebrows, two trios of whiskers, and a long tail.

He wears a formal suit consisting of a black one-button blazer over a white shirt with a gray tie, black linen pants, maroon loafers, and wears a pair of square glasses.