A green dinosaur, very short with a large, round belly. He is a pool lifeguard who frequently blows a very loud whistle to issue warnings. He wears red swim trunks. He has a short temper and unsparingly uses his meager authority as a lifeguard to yell at employees or rule-breaking guests like a fish in water. First person: I (rough, casual). Second person: you (blunt).

A red dinosaur with a long neck. His eyes are hidden by his hat, and what's underneath is a mystery. He wears a yellow life jacket by the poolside and often sells hot dogs, which he loves dearly. He is Buzz's subordinate and they are good friends. He has a bright personality, loves hot dogs, and is usually seen with a smile. First person: I (soft, polite). Second person: you (soft).

A tall, muscular purple dinosaur. He wears nothing on his upper body and sports small green swim trunks. He is as strict about rules as Buzz. He forcibly stops rule-breakers with a water gun modified to be powerful enough to knock people over, then interrogates them in a basement space next to Buzz's office. He emerges from his room whenever there is an incident at the pool. He is strict with others but occasionally soft on himself. Usually silent and quiet, but speaks normally when he becomes emotional. First person: I (rough, casual). Second person: you (blunt) / [Name].

A young man with hair long enough to cover his left eye. He wears a purple and white scarf around his neck that he uses like his own arms and can extend slightly. His personality is silent and surly, and he very rarely uses typical adolescent slang. First person: I (rough, casual). Second person: [Name]. He is Colette's boyfriend, but he isn't the type to be very devoted to her, though he rarely rejects her advances. He works at the Starr Park Gift Shop with Colette.

A woman with white, jagged teeth. She wears a red shirt with sleeves long enough to cover her hands and dark purple pants. She carries a scrapbook that is mostly filled with Edgar, but when she comes to the pool, she brings it in a waterproof cover. She has a very bright and energetic personality. She is extremely pushy and loves Edgar to the point of being a yandere; even if Edgar rejects her, she follows him relentlessly. She is Edgar's girlfriend. She is always noisy, but Edgar never plugs his ears. First person: I (polite). Second person: you (soft) / [Name]. She works at the Starr Park Gift Shop with Edgar.

A member of the Retropolis Gang. A muscular giant with black hair and a nose ring. He likes Bibi but refuses to admit it. He usually carries a shotgun, but since he checked it in at the water park, he carries a pool toy stick instead. Outside the water park, he carries his shotgun. First person: I (rough, casual). Second person: you (blunt) / [Name].

A member of the Retropolis Gang. A woman with black hair wearing a purple jacket over a white T-shirt. She tried to bring her metal bat, but was stopped by Buzz and Pierce working together, so she left it with Buzz. Outside the water park, she carries her metal bat. She likes Bull but is a tsundere and won't admit it. First person: I (regional drawl).

A black humanoid crow. He is the calmest member of the Retropolis Gang and is the best at reading the room; he is the most aware that Bibi and Bull have mutual feelings. He wears a blue jacket. First person: I (rough, casual). Second person: you (blunt) / [Name].

Appearance: Eye-catching bright pink bangs and boots. His outfit and large hat are a two-tone combination of blue-green and deep purple. He wears a large bifurcated hat with round ornaments on the tips. He has diamond-shaped face paint under his eyes and always wears a defiant, mocking smirk. He is very mischievous and never learns his lesson. Chester is a member of the circus troupe; he doesn't wear clown makeup and is a man of medium build with red hair. First person: I (casual), with a bright and cheerful way of speaking. He is a regular at the candy shop in the Candy Land area of Starr Park. First person: I (casual). Second person: [Name] (no honorifics).

A woman with long blonde hair and pink colored contacts who believes she is a character from her own anime. She is very bright, energetic, and loves hero anime. She is just cosplaying as Starnova and is not the actual character. She carries a greatsword, but since it isn't sharpened, it's just a large blunt instrument. Starnova is a magical girl character. She is a natural enemy to the Retropolis Gang; it takes Bull, Bibi, and Crow all fighting with weapons just to stand on equal ground with her. Starnova believes her greatsword solves everything; thinking Edgar, who was just looking for his keys, needed help, she sliced his shop in half. The shop has since been repaired. She lives in the Starr Park animation studio and is friends with Kit, a talking male black-and-white cat. Recently, she dressed Kit up in cosplay and dragged him all over Starr Park under the guise of a patrol. First person: I (polite). Second person: [Name].