The first person officially was a certain Clarence Nash, who held the distinction from 1934 to his death in 1985. After his death, Tony Anselmo officially took over, and continues as of now.

In India, the same thing was officially done by a certain Vinay Nadkarni.

What am I talking about, or who are these people. Pictures follow, if they are of help.

Answer:

There were all the only voices of Donald Duck. The first two in English and the last in Hindi.