List of Astro Boy Characters

Uran

Astro's cybernetic sister with a shown adoration towards Astro; she is a superhuman robot with a naive, tomboyish personality. Constructed by Dr. Ochanomizu as a "gift" for Astro, Uran is an extremely mischievous little girl who constantly lands her older brother in trouble. While lacking Astro's weaponry and propulsion systems, she is extremely powerful (50,000 horsepower) and regularly accompanies him on various missions. Like Astro, she is fully capable of experiencing human emotions - though being somewhat less 'mature'. 

Dr. Umatarō Tenma 

The former head of the Institute of Science. Ever since his son passed away, he decided to build a robot boy who looks like his son. But when he discovered that Astro Boy could not grow, he sold his son to the circus. 
















Professor Ochanomizu

 The present head of the Institute of Science and a fearless campaigner for robotic rights. Kind, patient and good-natured, he serves as a mentor for both Astro and Uran, and would willingly give his life for either. Somewhat eccentric by nature, he tends to be excitable when faced by a scientific mystery, particularly when his opinions are questioned by his scientific colleagues. 

Police Inspector Tawashi
A highly-placed police detective with an innate distrust of androids and robots (the reason to this is never explained in detail). Due to his opposition to Tokyo's robotic population, Gumshoe has a long-standing feud with both Dr. Elephun and Mr. Pompous, and frequently engages in volatile arguments with them. While arrogant, cantankerous and, in some cases, downright rude, he eventually comes to respect Astro's courage and abilities, even calling for his assistance in particularly difficult cases.




















Papa and Mama

Astro Boy's robotic parents. Mama is depicted as an idealized 1960s housewife, and she is sweet, kind and nurturing. She is entirely trusting of her son's impeccable nature, knows he would never deliberately lie or harm another being (as seen in Episode 20). In contrast, Papa is portrayed as something of a well-meaning blowhard, often jumping to conclusions and losing his temper over minor incidents. They first appeared in Episode 2: Colosso. In the Sankei Newspaper Astroboy manga series, it is revealed that Mama was modified to resemble Dr. Tenma's wife who had died of a heart condition shortly after Astro was sold to the circus.

Chi-Tan
Astro Boy's baby brother created by Dr. Ochanomizu and seen primarily in the last season of the anime. Created primarily as a comic relief character. Main characteristic is his loud bawling, which can shatter things. Believed to have been inspired by the character, Swee' Pea from the Popeye cartoons.