Although fairly prolific, most of Shimizu's domestic work consisted of bit characters. He received much larger roles in dubbing, such as Sabretooth, Eddy and Fong.
One of thirteen Japanese male actors to have taken his own life.
Partly because of his suicide, the Japanese dub of 'Ed, Edd n Eddy' only lasted two seasons. Wataru Takagi took over as Eddy, but only for bumpers and promotional material.