Tetsu is a informant who operates in Shinjuku under the cover of a shoe shine man. He frequently aids Ryo Saeba with his cases.

Ryo Saeba works the streets of Tokyo as the City Hunter. He's a "sweeper" and with his sidekick Kaori Makimura, he keeps the city clean. People hire the City Hunter to solve their dangerous problems, which he does with a Colt Python. When Ryo's not working on a case, he's working on getting the ladies, and Kaori must keep him in check with her trusty 10 kg hammer.
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(Source: Anime News Network)


Non-anime roles:  
Bakkasu in "Cosmic Fantasy 1" (VG) (Japanese)  
Gopher in "Kingdom Hearts II" (VG) (Japanese) 
 Xenon in "Poporogue" (VG)  Yoda in "Star Wars" (original trilogy) (Japanese)