Robby has anatomy similar to a stick figure, with lanky black limbs. He has black fluffy hair with a pale blue and red propeller hat. He also accessorizes with black glasses. Like most characters, he lacks a neck. He sports a black collared T-shirt, with a large front pocket. He also has three claw-like fingers, and his attire is finished with black shoes. In his reference sheet, he is seen wielding a grey wrench.

Riley seems to be a maniac, as she has a crazy demeanor. She appears to be chaotic as well, often seen wielding a knife. Additionally, she appears to have an obsessive crush on Oliver, going as far as to cling to him, however, Oliver is currently in a relationship with Δlice.

Ruby has a white flat-screen television for her head. Her black monitor displays box-shaped eyes, eyebrows, a mouth, and cheeks, all of which are colored light pink. Her hair is blonde and knee-length. She also has two black horns, with a rainbow arch in between them, accessorized with a pink bow. Ruby’s torso is in the shape of a cone, and her arms are blocky. She sports a pastel collared sleeveless shirt, with a white overall dress over it. A pastel-colored rainbow is at the center of the overalls. Her attire is finished with pastel-colored leg warmers and black shoes. Her limbs are black, however, her wrists are white. She also appears to have a black plug for a tail.

Skell has shoulder-length black hair with black horns, the left one having two white stripes. Unlike the others, Skell has a torso that makes it look like his shirt, with two buttons and fur around the bottom and top. He wears a collar with a large bell and a skeleton pin in his hair. He appears to have one visible wing, accompanied by a long black tail. His feet and fingers are pointed, and his limbs are similar to a stick figure. In his reference sheet, he wields a grey phone with a few swirls around him.