Guevara was no more the brains of the Cuban Revolution than Cheka-head Felix Drezhinsky had been the brains of the Bolshevik Revolution, or Gestapo chief Himmler the brains of the National Socialist Revolution, or KGB head Beria the brains behind Stalinism. In fact Che performed the same role for Fidel Castro as Drezhinsky performed for Lenin, Himmler for Hitler and Beria for Stalin. Che Guevara was the Castro regime's chief executioner.