Bubu Chacha

Randy Rand is a curious 3-year-old boy who loves his pet dog named Chacha. One day, Randy is about to get hit by a car, when Chacha protects him and ends up dying. In a strange miracle the night after the accident, Chacha's spirit is reincarnated into a living yellow toy car so he can be with him all the time. The two became inseparable afterwards and have many adventures in which they learn valuable things in life. The story is set in Greenhill Town, which is loosely based on Los Angeles, California.

Randy Rand (Buddy) (ランディ・ランド （ボク）, Randi Rando (Boku))

Voiced by: Yuko Sasamoto

Randy is a highly curious 3-year-old boy who matures through his experiences and friendship with Chacha. Everything he sees interests him and learning about anything excites him. Though he never calls himself by his name, his parents sometimes call him by his real name.

Chacha (チャチャ)

Voiced by: Chō

Chacha is once Randy's pet dog and best friend, guardian and teacher, who reincarnates as a yellow toy car. He is very supportive and also looks after Randy's safety. Chacha and Randy love each other and like to go out.

Connie Rand (Mom) (コニー・ランド, Konī Rando)

Voiced by: Atsuko Tanaka

Connie Rand is Randy's mother and Forest's wife, a loving and understanding mother who notices Randy maturing. Gardening is her hobby.

Forest Rand (Dad) (フォレスト・ランド, Foresuto Rando)

Voiced by: Takuma Suzuki

Forest Rand is Randy's father and also Connie's husband. Being a journalist, Forest has a lot of information that gets Randy all excited. Forest loves toys and is very imaginative.

Mary (マリー, Marī)

Voiced by: Taeko Kawata

Mary is Randy's neighbor who is the same age as him. She always behaves like a mature individual and thinks Randy is a little kid. She tries to teach him to grow up with much avail.

Catherine (キャサリン, Kyasarin)

Voiced by: Yumi Takada

Catherine is Randy's 14-year-old cousin who is occasionally asked to baby-sit Randy. She is part of a running gag in the series where she accidentally hits a post with her bike.

Nick (ニック, Nikku) and Terry (テリー, Terī)

Voiced by: Tomohiro Nishimura (Nick), Kōichi Sakaguchi (Terry)

Also known as the Rap Brothers, Nick and Terry are 5 and 3 years old. They both bully Randy and Chacha and always speak in Rap.

Uncle Daa (ダァーおじさん, Daā ojisan)

Voiced by: Kinryū Arimoto

Uncle Daa is a man who works for the pest control. He appears in every episode and shouts "daaaaaaaa!!" at kids. The children think he simply loves to scare them off, but he actually shouts at them when he feels they are in danger.

Tau Dinton (タウ・ディントン)

Voiced by: Omi Minami

Tau Dinton is an intelligent 5-year-old loner, who loves to read books. He moves to Greenhill Town, right across Buddy's house, and gradually opens up to Buddy and his friends.

Chip

Voiced by: Kôichi Sakaguchi

Chip is Tau's pet dog who just likes to run around wildly and bark. At first, Tau is not so fond of him, but as Chip improves his behavior, they get closer. Chip loves ChaCha and Buddy as well.

Sarah (サラ, Sara)

Voiced by: Yū Hayami

Sarah is a 12-year-old ghost living in the Ghost-apartment, who stands as sister-like figure for Randy. She is the same age as Catherine and is one of the two people who knows Chacha is a dog.

Grandmother (おばあちゃん, Obāchan)

Voiced by: Sayuri Sadaoka

Forest's mother who lives in Cleverland. She is very close to Randy, close enough to almost understand that Chacha is a dog. She looks at nature as one of mankind's best friend, just like Randy.

Kana (カナ)

Voiced by: Asa Shirakura

Kana is a female cocker spaniel and Chacha's crush. She does not notice that Chacha is a dog at first.

Hippo Truck (カバトラック, Kaba Torakku)

Voiced by: Hisao Egawa

Hippo Truck is one of Chacha's friends. He is a hippopotamus, who dies and reincarnates into a giant truck. He is jealous of Chacha regarding Randy.

Bubu Pyoko (ぶぶピョコ)

Voiced by: Mika Kanai

Bubu Pyoko is another of Chacha's friends. He is a frog who met Randy's grandmother. His spirit has been reincarnated into Forest's old toy car that he played with when he was a child.

Bull Robo (ブルロボ, Bururobo)

Voiced by: Hidenari Ugaki

Bull Robo is a bulldog and one of Chacha's friends. He has been Chacha's friend since before Randy was born. He first appears as a ghost, then reincarnates inside a toy robot.

Cindy (シンディ, Shindi)

Voiced by: Mako Hyōdō

Appearing in the second season, Cindy is a circus elephant, whose spirit has been reincarnated into a Shovel Car. She is physically strong, yet a little shy but ready to help people build anything.

Baby Leopard (ヒョウくん, Hyō-kun)

Voiced by: Junko Noda

Appearing in the second season, Baby Leopard is a baby leopard, whose spirit has been reincarnated into a sports car. He likes to race around town.

Eyebrow Alien

Voiced by: Keiichi Sonobe

The leader of the Eyebrow Aliens, who came to earth from the Eyebrow Planet.

Papa Rat

Voiced by: Kouki Miyata

Papa Rat is the father of a family of rats, who reincarnated into Tau's toy car. Papa Rat and his family lives in Tau's former house in Greenhill Town.

The series's music in both seasons was composed by Gori Tsuno, who did the soundtrack for Bakusō Kyōdai Let's & Go!!. Sound production of the anime was handled by Half HP Studio.

• Official website (in Japanese)
• Bubu Chacha (anime) at Anime News Network's encyclopedia