Astro girl
Uran (ウラン Uran) (also known as Astro Girl, Sarah or Zoran) is a major recurring protagonist in the Astro Boy Series, she is Astro's younger sister. She was created by Dr. Ochanomizu and was presented to Astro as a birthday gift or New Year's gift (depends on which version). 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. She's emotional and caring like her older brother as she was based on his design. She has the closest relationship with Astro. She is cheeky and yet loyal to her brother.





1963 Series


1980's series


2003 series




Dependent but also very Independent, usually likes nature more than other robots, besides Astro of course.


1963 Series

Uran (named Astro Girl) was first introduced in the 1963 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, she was presented as a gift to Astro on New Year's 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 realize that this is the start of a beautiful bond, as long as Astro keeps track of her. Uran often accompanies Astro on his adventures and acts as a sidekick when she isn't 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 Zoran in the English dub she was created to teach Astro responsibility and to possibly test Dr. O'shay's skills. Astro accepts her with open arms, excited to have his very first relative. Once learning what a handful she is, Astro apologizes for treating her childishly but requests that she does everything he says.

In the series she is given the ability to talk to animals, befriending a bird that she named Pikora, 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. However, she is usually only seen now and then in Dr. O'shay's house where she and her brother reside.


Uran appears in Naoki Urasawa's manga titled Pluto, based on the storyline "The Greatest Robot in the World" where she is also given the ability to speak with animals.

Video Games


Tetsuwan Atom (Famicom)

Uran appears in the Famicom Tetsuwan Atom game as an NPC with one sprite that flips back and forth, you save her from a frozen cave and later her, Higeoyaji, and Dr. Ochanomizu get into a rocket to escape an impending threat.


Tetsuwan Atom (Super Famicom)

Uran appears in the Super Famicom game Tesuwan Atom.


Astro Boy: Omega Factor

Uran appears in the game Astro Boy: Omega Factor.

Abilities and Powers

  • Extremely powerful: 50,000 horsepower.
  • Capable of experiencing human emotions.
  • Can communicate with animals. (2003, Pluto)
  • Twinning: Uran could split into two separate copies of herself, with both copies possessing 50% of the strength of the original Uran. However, this ability was temporary and only lasted for one episode.


  • In the manga chapter 38: "Uran" the beginning says that Uran's origins may never be known, and it explores different possibilities of Uran's origins. A lot of these are references, such as Higeoyaji saying she was retrieved from the bottom of the ocean, which is a reference to Roppu-Kun, and Cobalt saying she was found in a trash dump, which is Cobalt's origins in the TV show, but not the manga.
  • Uran possibly inspired the design of a Jetter Mars character named Miri.


See Uran/gallery

External links