Originally Walt Disney himself did the high-pitched, squeaky voice of Mickey Mouse, followed by several others
over the years.
Most recently, Wayne Allwine has lent his vocal cords to the cartoon character.
The first Mickey Mouse Cartoon with sound was Steamboat Willie in 1928.
Since then, Mickey Mouse has become one of the most recognizable symbols in the world, and was re-branded in 2009 by the Walt Disney Company, reintroducing the more devious side of his personality.