There's a wonderful article about Wayne Allwine on the D23 site.
Some excerpts:
"There is a profound sense of loss and sadness throughout our company today as we mourn the passing of our friend, colleague and Disney Legend Wayne Allwine," said Disney President and CEO Robert A. Iger. "Wayne dedicated his entire professional life to Disney, and over the last 32 years, gave so much joy, happiness and comfort to so many around the world by giving voice to our most beloved, iconic character, Mickey Mouse. Wayne's great talent, deep compassion, kindness, and gentle way, all of which shone brightly through his alter ego, will be greatly missed."
For the past 20 years, Allwine was married to Russi Taylor, the voice of Minnie Mouse. Allwine is survived by Taylor and five children from a previous marriage: Erin, Alison, Peter, Christopher and Joshua; and a grandson, Isaac. Funeral services will be private. Details regarding a life celebration will be announced at a later date.
In Allwine's memory, flowers or toys can be sent in Mickey's name to Mattel Children's Hospital UCLA, or donations can be made to such children's charities as the Elizabeth Glaser Pediatric AIDS Foundation, Guide Dogs of America or St. Jude Children's Research Hospital.