Mark Estdale does a candid Q&A with John Keefer for Game Culture.com. See also The Escapist: Developers need to cast actors sooner.
Mark Estdale: "From my experience the teams that produce good voice work are simply those lead by senior decision makers who are passionate about, and understand the power of voice (and audio) and they factor into their schedules and their budgets what is needed to facilitate results. They know."
Download a PDF copy of the Q&A here.