▁Bald win ▁for ▁the ▁lead ▁role , ▁but ▁Bald win ▁turned ▁it ▁down . ▁Steve ▁Martin ▁and ▁Kevin ▁K line ▁were ▁considered , ▁though ▁K line ▁turned ▁it ▁down ▁for ▁family ▁reasons . ▁Ram is ▁did ▁not ▁agree ▁with ▁the ▁casting ▁of ▁Tim ▁Allen ▁as ▁Jason ▁N es m ith , ▁and ▁Paris ot ▁took ▁over ▁as ▁director ▁within ▁three ▁weeks . ▁Allen ▁said ▁that ▁the ▁version ▁of ▁the ▁film ▁pitch ed ▁to ▁him ▁by ▁Ram is ▁and ▁Kat zen berg ▁felt ▁more ▁like ▁Space ball s , ▁in ▁which ▁they ▁wanted ▁an ▁actor ▁known ▁for ▁action ▁to ▁be ▁doing ▁comedy , ▁rather ▁than ▁a ▁com ed ian ▁doing ▁an ▁action ▁film . ▁Sig our ney ▁We aver , ▁who ▁had ▁previously ▁worked ▁with ▁Ram is ▁on ▁Ghost b ust ers , ▁said ▁that ▁he ▁wanted ▁to ▁cast ▁actors ▁that ▁had ▁not ▁done ▁any ▁science ▁fiction ▁roles ▁before , ▁a ▁choice ▁she ▁thought ▁odd ▁since ▁veter an ▁actors ▁in ▁this ▁category ▁would ▁know ▁what ▁was ▁hum orous . ▁After ▁seeing ▁the ▁film , ▁Ram is ▁said ▁he ▁was ▁ultimately ▁im pressed ▁with ▁Allen ' s ▁performance . ▁ ▁Cast ing ▁ ▁Following ▁Paris ot ' s ▁assignment ▁as ▁director , ▁Allen ▁was ▁quickly ▁cast ▁for ▁N es m ith . ▁After ▁he ▁had ▁been ▁cast , ▁Allen ▁had ▁to ▁choose ▁between ▁Gal axy ▁Qu est ▁and ▁B ic ent enn ial ▁Man ▁and ▁chose ▁the ▁first , ▁with ▁his ▁B ic ent enn ial ▁Man ▁role ▁going ▁to ▁Robin ▁Williams . ▁Allen ▁said