[Kai stabs Thodin through the chest.]
Thodin: Today... I, Thodin...
[Thodin falls over dead.] (01:02:50)
His Divine Shadow: The time has come to prove that all prophecies are false. That no-one can know the future. (00:50:45)
Stanley H Tweedle: How did you do that?
Xev Bellringer: I don't know... maybe I've got some Cluster Lizard in me.
Stanley H Tweedle: I could get past that.
790: Don't you even think about it, fugitive. She's my woman. (00:48:20)
Bug Bomb: Bug Bomb... lost head. (00:36:05)
Bug Bomb: Mal-Malfunction. (00:35:30)
Bug Bomb: Bug Bomb searching, Thodin. (00:32:25)
Original Xev Bellringer: Oh pleeeeaasse, put me out of my misery! I volunteer for the protein bank! I don't want to live this terrible life any more. (00:29:50)
Fore Shadow Officer: We will incinerate the carcass.
His Divine Shadow: No... This last specimen of a now extinct culture of romantic dreamers merits punishment beyond death. (00:05:40)
Super Nova - S1-E2
The Lexx: I am the Lexx. I am the most powerful weapon of destruction in the two universes. I was grown on the Cluster, which is ruled by His Shadow. The food was good there. My captain is Stanley Tweedle. I blow up planets for him.
Kai: I killed mothers with their babies. I've killed great philosophers, proud young warriors, and revolutionaries. I've killed the evil, the good, the intelligent, the weak, and the beautiful. I have done this in the service of His Divine Shadow and his predecessors, and I have never once shown any mercy. (01:20:50)
Kai: I am Kai, last of the Brunnen-G. Millennia ago, the Brunnen-G led humanity to victory in the war against the Insect civilization. The Time Prophet predicted that I would be the one to destroy the Divine Order and the League of 20,000 Planets. Some day, that will happen... but not today, as today is my day of death. The day our story begins. (00:00:30 - 00:01:20)
Xev Bellringer: What kind of robot are you?
790: I am a robot that wants to live in your underpants. (01:28:30)
Answer: From what I'm seeing, the answer seems simple. The robotic heads allow the control of the body they need. However, no mater how advanced you make a robot's body, it will never quite be as flexible and versatile in it's movements and actions as a flesh and blood human body can be in most cases. And if they do put the effort into creating a robotic body with the capabilities they need, and be durable enough to last... it would cost a lot of money. The Cluster has a large influx of constant prisoners that they use for feeding the Lexx and other needs, so human bodies are easy to come by and in vast quantities. Them simply producing robotic heads with the ability to interface with the human nervous system and placing them on the decapitated bodies of expendable prisoners is a hell of a lot more cost effective and easier to do with the technology they have. It's just a cheaper, more effective option for them to have thousands fo 790 Units in production and use without the cost of manufacturing a fully functional and durable robotic body for them.
Quantom X ★