Just wondering... (question for devs)

[Petike]

I think in overture/tech demo, the narration was one of the Devs along with other various human noises that don't require a voice actor to do (spider hater, hurt sounds, tuurngait likely)

The rest of the voices were done professionally.

Tech Demo : Mike Hillard ("Red" from Overture)
Overture : Tom Jubbert, the scriptwriter of the series... ;-)