Monkian was a Mutant in the 1985 Thundercats series. From the planet Plunn-Darr, Monkian was an anthropomorphic gorilla who was part of the original crew of Mutants to arrive on Third Earth.

Monkian was not the smartest tool in the Mutant shed, but he was a very skilled spy. Monkian often provided intelligence on Thundercat activity on Third Earth.