You could recostume other enemy squads to appear as gorn. They would use the weapons and abilities of the other species though (You would also need to change the names of each individual). Also, the foundry EULA prevents you from using any characters from the TV series if that's the surprise of your surprise protagonist; but if not, I look forward to the surprise!
Thanks. And the EULA thing? No I will only include a select few Greek Gods but they are the Mirror Universe versions. Apollo is not included as he is the one that was seen in the TOS episode and I don't want him in there anyway. The my surprise character is not the protagonist it's the antagonist which is the villain. Hint: this God is usually a Virgin that's all I'm saying about her.