Silly enough, some voice actors give their voice to more than one actor. Thomas Danneberg, for example, is the german voice of John Travolta, Arnold Schwarzenegger and Sylvester Stallone.
Don't ask me what happens when there is a move with two, or even worse, all three of them.
Compare:
- Schwarzenegger: The Terminator
- Stallone: Rocky
- Travolta: Pulp Fiction