Simplify the following text for a Grade 11 native English-speaking person.
Original: The voices for the 2006 return of the Cybermen were provided by Nicholas Briggs ( who performed the voices for the Cybermen in Big Finish audio stories as well as the Daleks in both the new series and the audio stories ) .
Simplified: They were provided by Nicholas Briggs ( who performed the voices for the Cybermen in Big Finish audio stories as well as the Daleks in both the new series and the audio stories ) .