Yuichi Takagi (高木 優一 Takagi Yuichi) is a character in Wangan Midnight. He is owner of a shop named Body Shop Sunday.
The shop specializing in bodywork, it was there that the bodies of the Devil Z and Blackbird were worked on. It is owned by Yuichi Takagi, an expert in welding, who actually was among those who helped first build the Devil Z years ago. He worked on the Devil Z again after it was destroyed in a collision, and repaired the body of the Blackbird when it was later involved in an accident. He also worked on the body of the Supra RZ/Monster Machine of Keiichiro Aizawa, as he was a close friend of Kei's late father.
He is seen in Wangan Midnight Maximum Tune 4 since then where Takagi rides with Akio in Blackbird during Chapter 21 in first part of Monster Machine arc.
In anime version was voiced by Fumihiko Tachiki while in Wangan Midnight (PS3) version was voiced by Bon Ishihara.