Ook Ook looks like a fun character to play and starts off with Ambidextrous. Combined with the various combat-oriented skills at higher levels as well as a pair of decent weapons, this guy is a real powerhouse.
Homage references are kind of all over for Ook Ook. From the Librarian from Disc World to Drax the Destroyer, there are several theories. The 'ook' word from the Librarian probably provides the most evidence for going with that conclusion. I'm not familiar with Disc World, but seems reasonable to me based on the 'ook ook' name...except other than the similar color to an orangutan, I don't know that he has a lot of other physical similarities.
Next up on the workbench: