In StarCraft II: Wings of Liberty as Raynor you could walk around your ship and have conversations with your crew after each mission. I wondered how it'd work for the zerg campaign. I had some vague thought that it'd be something like this:

Kerrigan: Do you know where that Protoss scum went?
Hydralisk: HISSSSSSSS!
Kerrigan: Hmm. I see. It wouldn't be wise to attack them now that the Templar are in that position.
Hydralisk: SCREEECH!

Now that I'm playing Heart of the Swarm, I have unfortunately discovered everyone is speaking in English, and for that I feel the game suffers.