
Quick answer — Daisuke Takahashi voices Saraku in A Certain Scientific Railgun T, Clarence in Terror in Resonance, President in Hakubo.
Daisuke Takahashi voices Saraku (A Certain Scientific Railgun T), Clarence (Terror in Resonance), President (Hakubo).
Saraku is voiced in Japanese by Daisuke Takahashi.