With 77% of the votes, C came out on top, but C is not correct.
With the 9th poll closed for this round of #HangTrek, no one has correctly guessed the answer.
The correct answer is Martus Mazur, the El-Aurian con artist from Star Trek: Deep Space Nine. Martus was played by Chris Sarandon, who portrayed Prince Humperdinck in "The Princess Bride".
@chrysomeles's guess was the closest to the correct answer. Feel free to start the next round or nominate someone else to.