I am a voice actor. I am mainly interested in Portal or Portal 2 mod characters. If you need a voice actor for your mod, you can PM me, and I'll be sure to reply. Mods that I am currently voicing for: "Afterword" (Portal 2 Mod): Science Core and Green
Here is a voice demo using characters from Portal and Portal 2. Not all of them are perfect (certainly not the deffective turret impersonation), but the main focus is to show that I am amble to use melodyne, and make Portal robot voices. In here, you will hear:
Turret, Portal 2 Announcer, Space Core, Defective Turret, Curiosity Core