Uran

Uran is and fun as Astro's younger sister. She was created by Doctor Elefun and was presented to Astro as a New Year's gift. She often finds herself getting into trouble and causing trouble for Astro. She possesses a part of Astro's strength but none of his powers, but in the 2003 series she was given the ability to talk with animals. Shes emotional and caring like her older brother as she was based off his design. She has the closest relationship with Astro.

 1960's Series 

Uran (named Astro Girl) was first introduced in the 1960's series. She was presented as a birthday present to Astro, who rejoiced claiming he had always wanted a sister. She proves to be a handful, teaching Astro what it actually means to be an older brother.

 1980's Series 

Formally introduced as Uran, Uran was presented as a gift to Astro on New Years day as a thank you for all his hard work. After showing her new family she could dance, Uran already causes Astro trouble only hours into his New Year. By the end of the day Astro and Uran realise that this is the start of a beautiful bondship, as long as Astro keeps track of her.

Uran often accompanies Astro on his adventures and acts as a sidekick when she isnt the main cause of the problem. Astro looks out for Uran and in turn she does the same, the best she can.

 2003 Series 

Renamed as Zoron in the English dub she was created to teach Astro responsibility and to possibly test Dr Oshay's skills. Astro accepts her with open arms, excitied to have his very first relative. Once learning what a handful she is, Astro apologises for treating her childishly but requests that she does everything he says. She smiles and shakes her head, saying "I don't got to cos I'm too cute!"

In the series she is given the ability to talk to animals, befriending a bird named Houdini, which even helps solve a mysterious case with the famous detective. She is often jealous of Astro's fame and power but loves and looks up to him none-the-less. She accompanies him on a few trips and plays a major role in the story of Pluto: Strongest Robot in the World. But is often only seen now and then in Dr Oshay's house where she and her brother reside.

Other Appearances

Uran appears in the game Astro Boy: Omega Factor and Naoki Urasawa's manga titled Pluto, based on the storyline "World's Strongest Robot" were she is also given the ability to speak with animals.