▁from ▁their ▁home world , ▁should ▁be ▁controlled ▁by ▁the ▁qu ari ans ▁once ▁again ; ▁Admir al ▁X en ▁also ▁performed ▁surg ery ▁on ▁her ▁child hood ▁to ys , ▁much ▁to ▁the ▁qu arian ▁squad mate ▁T ali ' Z or ah ' s ▁dis g ust ▁Eg on ▁St et mann ▁( St arc raft ▁II ) ▁– ▁cre ator ▁of ▁the ▁Me cha ▁Sw arm , ▁par ano id , ▁and ▁pr one ▁to ▁ter raz ine - indu ced ▁hall uc in ations , ▁he ▁was ▁once ▁chief ▁science ▁advis er ▁ab o ard ▁the ▁Hyper ion . ▁ ▁Professor ▁E . ▁G add ▁( N intendo ▁games ) ▁Dr . ▁Gast ▁( Final ▁Fant asy ▁VII ) ▁– ▁former ▁head ▁of ▁the ▁Shin ra ▁Company ' s ▁science ▁department ; ▁has ▁a ▁much ▁stronger ▁moral ▁comp ass ▁than ▁his ▁successor ▁ ▁Dr . ▁Gordon ▁Fre eman , ▁Ph . D . ▁( H alf - Life ) ▁– ▁theoretical ▁phys ic ist ▁who ▁f ights ▁a ▁one - man ▁battle ▁against ▁inv ading ▁al iens , ▁US ▁Mar ines ▁and ▁Com bine ▁forces ▁with ▁a ▁crow bar ▁and ▁other ▁weapons ; ▁his ▁associ ates ▁are ▁D rs . ▁Isaac ▁Kle iner , ▁Eli ▁V ance , ▁Jud ith ▁M oss man ▁and ▁Ar ne ▁Magn us son ▁ ▁Dr . ▁Krie ger ▁( F ar ▁Cry ) ▁– ▁ren owned ▁scient ist ▁and ▁cre ator / controller ▁of ▁the ▁Tr ig ens ▁in ▁the ▁first ▁Far ▁Cry