▁a ▁wealth y ▁industrial ist . ▁In ▁love ▁with ▁Mari , ▁he ▁is ▁first ▁st unn ed ▁by ▁the ▁S ont ar ans ▁and ▁later ▁killed ▁by ▁them ▁when ▁he ▁attempts ▁to ▁over power ▁them ▁with ▁their ▁st un ▁ray . ▁The ▁R ut an ▁later ▁takes ▁on ▁his ▁form ▁before ▁killing ▁Mari . ▁Sh aked own ▁was ▁O ' D onn ell ' s ▁first ▁acting ▁job , ▁he ▁later ▁appeared ▁in ▁the ▁fan ▁production ▁Aut on ▁ 3 ▁before ▁becoming ▁a ▁casting ▁director . ▁Michael ▁W isher ▁as ▁Rob ar , ▁the ▁ship ' s ▁engineer . ▁Rob ar ▁is ▁the ▁first ▁to ▁be ▁killed ▁by ▁the ▁R ut an ▁whilst ▁in ▁the ▁engine ▁room . ▁W isher ▁had ▁appeared ▁in ▁a ▁few ▁Doctor ▁Who ▁stories ▁in ▁the ▁classic ▁series , ▁but ▁was ▁best ▁known ▁in ▁f andom ▁for ▁being ▁the ▁first ▁actor ▁to ▁play ▁Dav ros , ▁the ▁cre ator ▁of ▁the ▁D ale ks . ▁W isher ▁also ▁had ▁appeared ▁in ▁a ▁number ▁of ▁fan - made ▁produ ctions ▁in ▁the ▁ 1 9 8 0 s ▁and ▁ 1 9 9 0 s , ▁including ▁W art ime ▁and ▁The ▁Air zone ▁Solution . ▁Sh aked own ▁would ▁be ▁W isher ' s ▁last ▁work ▁as ▁an ▁actor ▁as ▁he ▁died ▁the ▁following ▁year . ▁Ter rance ▁D icks ▁was ▁reported ly ▁not ▁happy ▁with ▁W isher ' s ▁decision ▁to ▁play ▁Rob ar ▁with ▁an ▁American ▁acc ent . ▁The ▁role ▁of ▁Rob ar ▁was ▁originally ▁mo