M. Hashimoto (anime character)
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
M. Hashimoto is an actor.
Dragon Ball Z
M. Hashimoto played the role of Mister Satan in The Savior Mister Satan's Record of Glory!, a documentary about the Cell Games. In the documentary, he wore a large Satan mask and defeated Future Cell (played by K. Fujicka).
In the FUNimation dub, Satan mentioned that the mask M. Hashimoto wore had his expression entirely wrong, not to mention was embarrassing.