Ross Bagdasarian, Jr. ( Ross Bagdasarian, Jr. )

Alvin / Simon / Dave Seville (voice)

Janice Karman ( Janice Karman )

Theodore / Brittany / Jeanette / Eleanor (voice)

Dody Goodman ( Dody Goodman )

Nancy Cartwright ( Nancy Cartwright )

Frank Welker ( Frank Welker )

Tress MacNeille ( Tress MacNeille )

Ross Bagdasarian ( Ross Bagdasarian )