“Tulok was one of the chief scientists of the Silurian race. He was alive on Earth when his...Tulok
“Thremix was a Gallifreyan biologist who created the virus that would give Time Lords longer...Thremix
“Valkro was a Yend biologist. He worked in the installation in which the First Doctor was held as...Valkro
“Mernogil was a Yend biologist. He worked in the installation where the First Doctor was held as...Mernogil
“L. D. Ia was a biologist whose mind was stolen by Skagra on the Think Tank space station. He...L. D. Ia
This category has the following 4 subcategories, out of 4 total.