ner , ▁whose ▁destin ies ▁become ▁inter tw ined ▁with ▁that ▁of ▁all ▁man kind . ▁The ▁Ta ver ner ▁tw ins ▁are ▁revealed ▁to ▁be ▁the ▁same ▁person ▁by ▁the ▁engine ers ▁of ▁Tre er , ▁dup licated ▁when ▁Roland ▁tra ve led ▁through ▁a ▁r ift ▁in ▁space - time , ▁while ▁Box er ▁has ▁become ▁the ▁most ▁wanted ▁man ▁in ▁the ▁world ▁despite ▁his ▁political ▁t ies ▁and ▁his ▁having ▁the ▁fate ▁of ▁the ▁future , ▁in ▁the ▁form ▁of ▁a ▁proph etic ▁screen play ▁for et elling ▁the ▁end ▁of ▁the ▁world , ▁in ▁his ▁hands . ▁ ▁Cast ▁ ▁D way ne ▁Johnson ▁as ▁Box er ▁Sant ar os ▁/ ▁Jer ich o ▁C ane , ▁an ▁am nes iac ▁action ▁star ▁whose ▁life ▁cross es ▁paths ▁with ▁K ry sta ▁Now . ▁Sant ar os ▁is ▁married ▁to ▁Mad eline ▁F rost ▁Sant ar os . ▁ ▁Se ann ▁William ▁Scott ▁as ▁Private ▁Roland ▁Ta ver ner ▁/ ▁Officer ▁Ron ald ▁Ta ver ner , ▁identical ▁tw in ▁brothers , ▁one ▁who ▁is ▁a ▁kid n apped ▁U . P . U . 2 ▁officer ▁in ▁Herm osa ▁Beach , ▁California , ▁the ▁other ▁who ▁is ▁working ▁for ▁the ▁ne o - Mar x ist ▁group ▁who ▁have ▁told ▁him ▁he ▁kid n apped ▁and ▁dru gg ed ▁his ▁brother . ▁ ▁Sarah ▁Mich elle ▁G ell ar ▁as ▁K ry sta ▁Now ▁/ ▁K ry sta ▁Lyn n ▁Kap owski , ▁an ▁adult ▁film ▁star ▁who