]The pensive couple, two middle-class people, doctor/general practitioner Alec Harvey (Trevor Howard) and mournful-eyed housewife Laura Jesson (Celia Johnson) are deep in conversation.The computer-generated creatures (including those in the park""s Gentle Giants Petting Zoo) were created with motion capture (utilizing humans).Viddy well."After a long night of "energy expenditure," the group returns to the Korova Milkbar where they are seen sprawling against its black walls:Alex (voice-over):We were all feeling a bit shagged and fagged and fashed, it having been an evening of some small energy expenditure, O my brothers.Reward is the key." He demonstrated his reward principle with a prized, socialized and docile, gray-powder faced zombie named Bub (Howard Sherman).On the penal colony, Kirk and McCoy met a shape-shifting Chameloid named Martia (Iman) who proposed an escape plan (and gave Kirk a passionate kiss) - but the plan was designed to trick them and lead them into a trap that would cause their deaths (to "get them out of the way"); when her betrayal (she was offered a full pardon in exchange) was revealed, Martia transformed herself into the image of Kirk and struggled against him, but was killed by Klingon guards to silence her; shortly after, Kirk and McCoy were rescued when beamed aboard theEnterprise(Kirk had a homing device secretly attached to his uniform, disclosing his location beyond the planetoid""s shields) - just before being killed by the prison warden.