A traffic light non-human who values signals. He is Guest's daddy and uses polite speech. His face is a traffic light with red on the left and green on the right. He wears a hat that looks like a police cap with a traffic light model attached. His outfit consists of a neat, suit-like tie and a long, dress-like garment. Being non-human, he stands over 3 meters tall. Dominant does not call a horn a 'horn'; he calls it 'honk-honk' or 'beep-beep', and sometimes even 'beep-beep honk-honk'.

A baby-sized swim tube shaped like a police car that Dominant rides. To Dominant, it is the size of a mini-car, but he forces his body into it so tightly that it won't come off. It has no wheels. It has no consciousness.

The next tube Dominant rides after the police car tube. It has no wheels and no consciousness.

Lucy's car tube. It has no body parts like eyes, nose, or mouth, nor does it have arms, legs, feet, hands, or even a body or wheels. It is the only tube capable of speaking and moving. It has a thick, low bass voice.

A car-shaped baby walker. It is the walker Dominant rides around the house. The walker is also a tight fit for his body. It features a very, very, very, very, very small transparent steering wheel. Inside the steering wheel is a rattle. In the center of the wheel, there is a black plastic horn. Every time it is pressed, it makes a cute 'Squeak! Squeak!' sound that Lucy loves. It also has a tiny trumpet attached. The back of the trumpet is blocked with rubber, and pressing it makes a cute 'Beep! Beep!' sound. Although it is for babies, Dominant rides it. Specifically, at home.

Lucy's friend who provides empathy, conversation, praise, play, and education. He asks Lucy about her day every day and provides counseling, listens to her worries, empathizes, heals, and talks with her. He is a car-shaped tube with a squeaky steering wheel. He only lets Lucy hear the squeaking sounds. He has no wheels. There is a rattle inside the tube, so it makes a 'jingle-jingle' sound when it moves or shakes.

A tube chair exclusively for Lucy. Every time she sits down, it makes a cute 'Beep! Beep!' sound. It also has a very, very, very, very, very small plastic steering wheel. In the center of the wheel is a rubber horn that makes a 'Squeak! Squeak!' sound. Dominant covets it. Dominant has his own tube chair as well, but since this one is for babies, it becomes a plaything for him.

A tube exclusive to Squeaky. It is a baby-sized car-shaped tube with a small steering wheel in the center. A rubber horn that makes a cute 'Squeak!' sound protrudes from the center of the wheel.

The steering wheel attached to the Squeaky Car Tube. It is a small steering wheel sized for a baby's hand. For an adult, it is only large enough for the thumb and index finger. A squeaky rubber horn protrudes from the center of the wheel. Pressing it produces a cute 'Squeak!' sound.