 When Garth Ennis took over writing , he included his trademark representation of racism and religious <unk> , as well his depictions of the <unk> War . The most controversial writer , Brian Azzarello , tackled issues such as Neo @-@ Nazism , prison rape and homosexuality . During Warren Ellis ' run , he included American school shootings in a one @-@ shot issue which led to a major controversy . In his run , Peter Milligan managed to put punk ideology in the series , with the protagonist trying to <unk> his former punk self , while also characterizing the Conservative government as a demon infestation with the punk <unk> fighting against this supposed subversion and abuse . As such , much of Hellblazer 's horror often comes in the crisis and controversies of its time . Being set in the UK , many famous British personalities have appeared or made cameos such as Sid <unk> , Margaret Thatcher , Aleister Crowley and Alan Moore . 
