Is it just me, or do some Warcraft III voices sound the same

Is it just me, or do some Warcraft III voices sound the same

During the time I played Warcraft III, I noticed a few of the voices sound the same. I'm guessing there done by the same guy, for instance, Medivh and the Druids of the Claw sound similer, and maybe I'm just imagining this, but Varimathris and Archimonde kinda sound the same.

Of course they are done by the same people. Do you really expect them to hire more people for hundred's of voices?