Heroes
Tanpei (丹平) (voiced by Yoshiko Ōta): The loyal lab assistant of Dr. Kieta, Tanpei is a smart and sporty boy, aged 13. He is warm, pure, courageous, and is a genius mechanic. He is often seen sparring with Junko, his fellow assistant and Dr Kieta's granddaughter, comforting, or encouraging her. Tampei has been depicted as having a crush on her for more than once. Everybody in the team calls him "Tanpei-chan". Not much of his family and school background is given.
Junko (淳子) (voiced by Mari Okamoto and Keiko Yokozawa in eps. 34-36): Junko is Dr. Kieta's 10 year-old granddaughter. She is a responsible young girl and is always lending a helping hand to others. She is gentle, caring, erudite, and resourceful. She misses her grandfather dearly, thus earning a lot of sympathy from the rest of her team as they search for him. She might seem a little whiny at first glance, but vows to become stronger under the influence of Tanpei, whom she has a crush on.
C-robot (チョロ坊) (voiced by Reiko Katsura): A robot sidekick created by Tanpei, he can appear pretty childish in both appearance and actions, but this is not always a hindrance. His power source is the winding key protruding from his back. Chorobo's features include also a flamethrower built into his nose, extendable limbs, and the ability to shock others with a significant amount of voltage output. Although a robot, he's seen briefly eating cream puffs in the second episode.
Dr. Kieta (木江田博士) (voiced by Ryūji Saikachi): Junko's grandfather and creator of the "Time Bokan" time machines. A famous scientist, he wasn't found until the 27th episode, but soon joined Tanpei's team on other journeys.
Perasuke (ペラ助) (voiced by Junpei Takiguchi): A talking parrot who seems to be the only source of information about Dr. Kieta's location after he was lost in time; he always makes random testimonies on that. The only thing he fears is probably his wife, Otake. It turns out that he accidentally triggered the time machine while Dr. Kieta was absent in a particular age (which turned out to be the present day), and returned to the lab with it. After the journey he took with our heroes, he reunited with his wife in the finale. His voice can be heard in the previews of upcoming episodes at the end of each episode before the ending theme. His name is a pun on his species.
Otake-san (オタケさん) (voiced by Haru Endou): A bossy and impatient female parrot of Perasuke's kind and his wife. She is depicted with a distinct air of vanity and a body frame much larger than Perasuke's. She is also frequently kicking Perasuke about, despite her love for him. At the beginning of the series, she and Dr. Kieta are frequently soothing each other's eagerness of reunion.[4]
Villains
Commonly known as the "Time Skeletons" ("タイム ガイコツ") through the show, the three villains portrayed in this show were even more familiar to the audience than the heroes, mainly due to their renowned stupidity, shown by their inevitable fate of always suffering a crushing defeat in each episode. They also were the inspiration for the "Team Rocket" trio in the Pokémon TV series, and by extension a number of similar anime villains.
Majo (マージョ) (voiced by Noriko Ohara): Majo, 30 years old, is the attractive blonde female leader of the trio. Her character was written as a "vain villainess" stereotype; accordingly, she often acts and speaks as if she were the most beautiful and intelligent character in the entire series. Of the trio, she is the most enthusiastic about capturing the "Dynamond", but ends up doing virtually nothing except bossing her two henchmen around, invariably cursing them after the "defeat" sequence in each episode, as well as ending up naked as a result of some misfortune. Her name is derived from the Japanese word "魔女" (majo), which means "witch".
Grocky (グロッキー) (voiced by Jouji Yanami): The "brainiac" henchman of Majo, aged 25. He used to work undercover for Dr. Kieda, therefore he is usually employed to build a new and different mecha in each episode to counter the Time Bokan used by the heroes. He is cunning, though quite prone to making silly mistakes on the machinery (most of which became the key issue of the villains' misfortune throughout the episodes). His name is derived from the Japanicized word for "grotesque". The character of Waluigi is partially inspired by him.
