Dexeter

Dexeter was the chief scientist of the Alzarians. He based his facility inside the Starliner. He was facinated as to the nature of the Marshmen that made the Alzarians fear them. When a Marshchild was captured within the starliner it was taken to Dexeter who began examining it. He took tissue samples for which the Doctor berated him. However he did not listen and after permission from the deciders began a full examination. However as he about to make the first incision to the Marshchild's head it awoke through a telepathic link to Romana. It then strangled Dexeter to death. The Doctor used tissue samples from Dexeter while comparing Alzarian, Marshman and Spider cell structure. This revealed they were all the same. As Decider Draith was being pulled into the swamp at Mistfall he told Aric to "tell Dexeter we've come full cicle". This suggests despite his harshness he was a respected member of society. He constantly prised above his positon asking for information from the System Files, everytime he was told he was going to far.