Character names hide aspects of personality and intention. Sometimes the writers may not even be aware of all the shades of gray. The alien’s first victim is Kane. On paper he seems an ordinary citizen, but on the screen the euphony with the first human child, Cain, is obvious. As Parker is lamenting how large the alien has grown in just a short time, science officer Ash whispers, “Kane’s son.” Or is it Cain’s son? Cain, the infamous ancestor of the sinful Grendel and any number of other villains of literature and cinema. Cain is, significantly, the first child born in Genesis, himself the genesis of sin in the world since his murder of his brother is the first act that the Bible declares a “sin.” The alien, born worlds away, conforms to biblical expectations.
Since Ash is actually an android and has no real feelings, he admits the alien to the ship and protects it until he is destroyed by his shipmates. He represents unfeeling science amid the horror of human bodies being invaded and rent apart. When accused of admiring the alien, the resurrected (!) science officer states, “I admire its purity. A survivor… unclouded by conscience, remorse, or delusions of morality.” Is he not really describing science itself? Religion is running rampant on the Nostromo. As Ripley sets the detonation charges and finds her escape blocked, she races back to the console and cancels the self-destruct order which the HAL-like Mother ignores. In a secular prayer Ripley calls out to Mother who, like any deity, does not answer all human pleas. And even as she escapes the detonating ship, Ripley will find that Cain’s son is still lurking in the corner of the emergency shuttle, for the science can never truly escape from Genesis.