▁films ▁based ▁on ▁the ▁novel ) ▁– ▁creates ▁a ▁creature ▁and ▁gives ▁it ▁life ▁ ▁Dr . ▁Les lie ▁G askell ▁( K ron os ) ▁– ▁came ▁up ▁with ▁a ▁way ▁to ▁destroy ▁the ▁giant ▁machine ▁ ▁Richard ▁Hann ay ▁( The ▁Th irty - N ine ▁Ste ps ▁and ▁Green m ant le ) ▁– ▁British ▁min ing ▁engineer ▁who ▁is ▁the ▁hero ▁in ▁John ▁Buch an ' s ▁World ▁War ▁I - era ▁advent ure ▁nov els ; ▁The ▁Th irty - N ine ▁Ste ps ▁has ▁been ▁adapted ▁for ▁film ▁three ▁times ▁▁ ▁Dr . ▁Stanley ▁Good speed ▁( The ▁Rock ) ▁– ▁F BI ▁chemical ▁weapons ▁special ist ▁ ▁Corpor al ▁Hard in ▁( S ou thern ▁Com fort ▁( 1 9 8 1 ▁film )) ▁– ▁chemical ▁engineer ▁in ▁regular ▁life ▁on ▁week end ▁man eu vers ▁with ▁Louisiana ▁Army ▁National ▁Guard ▁squad ▁in ▁rural ▁bay ou ▁country ▁as ▁they ▁ant agon ize ▁some ▁local ▁C aj un ▁people ▁and ▁become ▁h unted . ▁His ▁day ▁job ▁is ▁only ▁relevant ▁to ▁explain ▁his ▁rational ▁sensible ▁approach . ▁ ▁Professor ▁Edd ie ▁Jess up ▁( Al tered ▁States ) ▁– ▁hero ic ▁at ▁the ▁end ▁ ▁Indiana ▁Jones ▁( Ind iana ▁Jones ▁mov ies ▁and ▁TV ▁shows ) ▁– ▁advent ur ous ▁arch ae ologist ▁ ▁David ▁Le vin son ▁( Ind ep end ence ▁Day ) ▁– ▁cable - TV ▁engineer ▁who ▁de vis es ▁the ▁trick ▁that ▁blocks ▁the ▁al ien ▁invasion ▁ ▁Dr . ▁Em