Fomal

Fomal was the Chief Yend and lead biologist in the installation in which the First Doctor was held as a specimen during his time on the planet Wengrol.

Biography
Fomal told the Doctor the history of the mutants and requested that he take with him a case of un-mutated Yend embryos. As the Doctor left, Fomal was overcome by mutants. It is not known if he was killed or survived as a mutant. (DWAN: The Sons of the Crab)