Monnk

That's not his name. We don't, officially, know his name.

Yet.

(The crew of the Banana Republic believe that he might be Zallara Terrek's missing son Eric Terrek.

He has been transformed by mad science and bioengineering into a Very Large Shark Man.

1. Dizzy named him after a SCUBA trooper she once knew.
2. He knows things about communication channel frequency manipulation that are obviously expert level.