Question: who is the berserker in fate stay night
Answer: Berserker ( バーサーカー , Bāsākā ) - Heracles ( ヘラクレス , Herakuresu ) Voiced by : Tadahisa Saizen ( Japanese ) ; Michael McConnohie ( English ) The Servant of Illya , who appears as a swarthy giant with adamantine skin and gross brawn .