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.
Vice Admiral Laurence Corrin - USS Trafalgar
Captain Takaram ch'Rihan - USS Khellian
Captain Korax joH'a' vo'poH - USS Hartnell
General Hothkar, Son of Ta'lon - IKS oDwI'