▁Thank ▁you .' " ▁Gordon - Le v itt ▁described ▁his ▁vocal ▁performance ▁as ▁being ▁half ▁rem in is cent ▁of ▁Chris ▁Lat ta ' s ▁voice ▁for ▁the ▁ 1 9 8 0 s ▁cart oon , ▁but ▁also ▁half ▁his ▁own ▁ideas , ▁because ▁he ▁felt ▁rendering ▁it ▁fully ▁would ▁sound ▁rid icul ous . ▁The ▁h ood ▁was ▁not ▁used ▁in ▁the ▁movie , ▁due ▁to ▁concerns ▁that ▁it ▁would ▁res emble ▁the ▁h ood ▁used ▁by ▁the ▁K K K . ▁ ▁For ▁most ▁of ▁the ▁movie , ▁he ▁is ▁referred ▁to ▁as ▁The ▁Doctor , ▁a ▁scient ist ▁working ▁with ▁James ▁McC ull en ▁concerning ▁his ▁research ▁on ▁nan om ites . ▁It ▁is ▁revealed ▁that ▁he ▁was ▁R ex ford ▁G . ▁" R ex " ▁Lewis , ▁the ▁younger ▁brother ▁of ▁Ana ▁Lewis , ▁and ▁once ▁a ▁soldier ▁alongside ▁Duke . ▁R ex ▁was ▁pres umed ▁dead , ▁after ▁a ▁building ▁Duke ▁sent ▁him ▁into ▁was ▁hit ▁with ▁a ▁prem ature ▁air ▁strike ▁called ▁in ▁by ▁Duke . ▁But ▁prior ▁to ▁the ▁explos ion , ▁R ex ▁saw ▁McC ull en ' s ▁early ▁experimental ▁research ▁on ▁nan om ites ▁conducted ▁by ▁Doctor ▁Mind b ender , ▁and ▁was ▁in ▁a we ▁of ▁the ▁sight . ▁Sur v iving ▁the ▁incident , ▁yet ▁scar red ▁both ▁phys ically ▁and ▁ment ally ; ▁requiring ▁a ▁special ▁mask ▁to ▁bre at he , ▁R ex ▁lear ns ▁from ▁Mind b ender ▁and ▁perfect s ▁the ▁nan om ites