The Klingon first officer was portrayed by Regi Davis.
This Klingon officer served on the bridge of Vorok's battle cruiser when Captain Vorok made first contact with Enterprise. Later he accompanied his captain aboard the Xyrillian starship and viewed a sample of their holoprograms. (ENT: "Unexpected")
This Klingon officer was played by background actor Michael Braveheart who received no credit for this part.