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Sonic News Network
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Welcome to the kindergarten. I'm the kindergarten principal.

— The Chao Principal, Sonic Adventure 2: Battle

The Chao Principal, also known as Professor Chao[2] and Doctor Chao[2] (チャオ博士[2] Chao hakase?), is a character that appears in the Sonic the Hedgehog series. They are a Chao and the principal of the Chao Kindergarten.


The Chao Principal is an neutral Chao of standard coloration: light blue with yellow hands and feet, and pink wings. Like other neutral Chao, they also have a teardrop-shaped head with a yellow orb floating above it. They possess as well a gray mustache and a matching beard. For attire, they wear a pair of round glasses with white lenses.


In Sonic Adventure 2, its enhanced port Sonic Adventure 2: Battle, and the 2012 remaster, the Chao Principal is the principal of the Chao Kindergarten . In gameplay, the player can see them in the Principal's office. Here, the player can ask them certain fixed questions regarding the Chao Kindergarten and Chao raising in general.


  • In Sonic Adventure 2 and its remakes, a line of text spoked by the Chao Principal says includes “Actually, I’m the Chao doctor.” This is a mistranslation in the games, and is meant to say "Professor Chao"; the Chao Professor and the Chao Doctor are in fact two different Chao.
  • The Sonic Adventure 2: Battle version of the Chao Principal's room had been rearranged from the Sonic Adventure 2 version, likely so that the Chao Statue would be more visible.




  1. Sonic Adventure 2: Battle (Nintendo GameCube) United States instruction booklet, pg. 53.
  2. 2.0 2.1 2.2 2.3 2.4 Dr. CHAO's room. CHAO Laboratory. Archived from the original on 25 June 2003. Retrieved on 27 February 2022.

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