In the dialogue screen where Tovan Khev describes his plan to warn the colony world of the impending attack (objective Down, Grid), the actor flubs his line at the end. There's a pause, he says, "Pickup!", then there's another pause, before he delivers the correct line.
Edit: Found another one in the same mission, the final BOFF dialogue is labelled Satra, and it's Satra who is displayed talking, but the voice is Torvan Khev.
This character is why I don't play my Romulan any more. Tovan Khev is NOT my BFF! Get him off my bridge!