Who was in Alvin and the chip munks?

The original Alvin and the Chipmunks were voiced by Ross Bagdasarian Sr., who also created the characters and the technology used to alter their voices.

* Alvin was voiced by Ross Bagdasarian Sr. in a high-pitched voice.

* Simon was voiced by Ross Bagdasarian Sr. in a more normal-sounding voice.

* Theodore was voiced by Ross Bagdasarian Sr. in a lower-pitched voice.

The voices of the Chipmunks have been portrayed by various actors over the years, including:

* Ross Bagdasarian Jr. (as Alvin)

* Janice Karman (as Simon)

* Frank Welker (as Theodore)

There have also been numerous actors who have voiced the characters in the various film adaptations.