![](https://cdn.animecharacters.io/images/characters/large/54673-b4f60e98.jpg)
Tetsu (鉄ちゃん)
The lab assistant of Dr Monja aged 13. Like his counterpart Tanpei in the show Time Bokan, he is sporty and quite capable at mechanics. (Source: Wikipedia)
Voice Actors
Yuuji Mitsuya
Japanese
The lab assistant of Dr Monja aged 13. Like his counterpart Tanpei in the show Time Bokan, he is sporty and quite capable at mechanics. (Source: Wikipedia)
Yuuji Mitsuya
Japanese