lolwut? And it's not "Rig Donovan"?
Free Step Dodge
Brute
Forlorn Penguin
It's labeled as "Donovan". Screenshot and video in this link.
http://www.ps3trophies.org/forum/dead-alive-5/174317-i-unlocked-donovan-voice-system.html
http://www.ps3trophies.org/forum/dead-alive-5/174317-i-unlocked-donovan-voice-system.html
Brute
Dude, his voice kicks ass! I want that announcer!