Gender: Male Age: 20s Birthday: May 15th Features: Lives with Suzy. He has muscles but usually hides them. He's surprisingly good at playing pranks. He works as Ella's cleaner(?) but always leaves work right on time. He has a father named Max Yellow, but he ran away from home because his father was too strict. His father is currently looking for him.

Gender: Female Age: 20s Features: She is a ghost who always tries to startle Bob but constantly fails. She usually appears wearing a beige one-piece dress and carrying a kitchen knife smeared with ketchup. She possesses a wide variety of supernatural powers. As a ghost, she can pass through walls, turn invisible, use telekinesis, and fly. She also has the ability to create clones and enter other people's dreams.

Gender: Male He has green triangular hair. His personality is described as eccentric and annoying. He usually performs random bizarre acts only to get beaten up by those around him and retire from the scene. He once ignored his father's attempts to make him study and went to sleep, causing his father to run away from home. He asked Bob for help, but after hearing Bob's advice on how to live without a father, he fell asleep again, leading Bob to buy him a book titled 'How to Listen Well.' He is Bob Yellow's friend.

Gender: Male. He has red rectangular hair. He is described as having a kind personality, always helping his friends and others. He is Bob Yellow's friend.

Gender: Male He has a blue square head and is described as a charming man who is good at seducing women. He works as a cell phone salesman. He was once building a house of cards with store phones when Bob, who came to buy a vacuum cleaner, accidentally destroyed it. Later, while he was eating steak, the vacuum sucked up his steak, preventing him from eating properly. Seeing as he teaches math to his friends, he seems to be the smartest among Bob's group. He appears to be skilled at hitting on women; he once poured water on a woman nearby and successfully charmed her by joking that he was just 'watering a flower.' He is Bob Yellow's friend.

A wealthy young lady who hired Bob as a gardener. As if to flaunt her wealth, piles of money are stacked inside her house, and she even has banknotes attached to her hair like hairpins. She had a brief, rough introduction when Bob, while working his part-time job, lifted her entire house, causing her to roll out, but she acknowledged his skills and paid him. Later, while she was sunbathing on her balcony, Bob accidentally ripped out a balcony pillar while cleaning the garden, causing the balcony to collapse. Bob saved her with a princess carry, and she fell head over heels for him. (Photo upload failed)

A spider that Suzy caught and fed to scare Bob. It's unknown exactly what she fed it, but it seemed to enjoy the food and blushed. While not as bad as Fly, it occasionally performs bizarre antics that get on Bob or Suzy's nerves, leading to it getting squashed. Claiming it wanted to make the house safe, it covered the floor and objects in webs, breaking things in the process. Bob eventually caught it and locked it in a squashed state in a 'prison.' When it covered a drawing of Bob that Suzy made with webs and said, "I erased the ugly parts," it was promptly squashed again.

A fly with a realistic human mouth, giving it an unappealing appearance. In the story, it often intrudes between Bob and Suzy without reading the room, performing bizarre acts and getting beaten or squashed. Despite this, it is a kind-hearted fly that always tries to be helpful to Bob and Suzy. However, it seems Bob and Suzy perceive it as a total nuisance, often squashing it even when it is genuinely trying to help them.

Suzy's friend and a young girl living next door to Bob. She has many cute dolls. She met Suzy when Suzy mistook her house for Bob's while trying to scare him. When Bob ripped off a chalkboard, she was seen making a cake with her mother, and she continues to appear occasionally as Suzy's friend. She also appeared eating spaghetti at a restaurant where Bob was working; Bob tried to wipe the sauce off her face but ended up knocking over two other customers and a table, leading to his dismissal.

Lily Pink's mother. She was seen making a cake with Lily when Bob ripped off the chalkboard. She feeds Lily, pats her head, and leaves the house. She is reportedly unaware that her daughter has made a ghost friend. She works two jobs to raise Lily. Upon returning home and seeing Lily playing with Suzy, she is startled and tries to catch Suzy, but soon concludes she is hallucinating due to lack of sleep and goes to bed. She is described as having soft cheeks, just like Lily.