Disney
Pixar
Leapfrog Toys
George Harrison (John Lennon impression)
Alex Torrenegra, one of the co-founders of Voice 123
"Star Trek" game (Klingon, Romulan, Ferengi)
Numerous World War II simulators
"Dr. Muto" and "Pitfighter" for Atari Games
My many other clients include KFRC Radio, SSI, 3D0, Atari / Midway, Computer Curriculum Corporation, Infinite Interactive, Farsight Interactive, and a Billion Kazillion others.
Training at KBSU radio station in Boise, Idaho, and KPFA in Berkeley.
Extensive home recording studio... Mikes: AKG C-1000-S, a pair of MXLs. Other equimpment: ART Tube Compressor Pre-Amp, Tascam DA-30 MK II DAT recorder, Software such at Cool Edit Pro. Soundproofing, of course.
Mostly, I try to put myself in the "head space" of the character I'm imitating or acting. I use visualization techniques, a dash of method acting, and some good old fashioned instincts.
As to Audio Production: I have a limited sound effects library and no music library, but some great recording equipment, editing talent and software, and great delivery options.