Ross Bagdasarian, Jr. was the creator and first to voice Alvin and the Chipmunks.
The human voice was provided by a man named Jason Gleed.
Alvin and the Chipmunks: ChipwreckedThe Chipmunks ~Justin Long as Alvin Seville (speaking voice) Matthew Gray Gubler as Simon Seville (speaking voice)Jesse McCartney as Theodore Seville (speaking voice)Ross Bagdasarian, Jr. as Alvin Seville (singing voice)Steve Vining as Simon Seville (singing voice)Janice Karman as Theodore Seville (singing voice)The Chipettes ~Christina Applegate as Brittany (speaking voice)Anna Faris as Jeanette (speaking voice)Amy Poehler as Eleanor (speaking voice)Janice Karman as The Chipettes (singing voices)
Brittany is voiced by Christina Applegate .
The Alvin Show: Ross Bagdasarian, Sr., Alvin and the Chipmunks (TV series): Ross Bagdasarian, Jr., Alvin and the Chipmunks (film) and Alvin and the Chipmunks: The Squeakquel: Justin Long (singing Alvin: Ross Bagdasarian, Jr.)
Jesse McCartney provides the voice for Theodore in "Alvin and the Chipmunks: The Squeakquel" .
Matthew Gray Gubler provides the voice of Simon Seville in "Alvin and the Chipmunks: The Squeakquel" .
Jason Lee of the sit-com My Name Is Earl plays David Seville in the Alvin & The Chipmunks movie.
Anna Faris provides the voice Jeanette .
In " Alvin and the Chipmunks: The Squeakquel " the Chipettes are voiced by Christina Applegate as Brittany , Anna Faris as Jeanette and Amy Poehler as Eleanor .
Jesse McCartney plays the voice of Theodore.
Jesse McCartney as theodores voice
Justin Long .
Ross Bagdasarian, Jr. was the creator and first to voice Alvin and the Chipmunks.
Justin Long .
In the new 2007 movie, Jesse McCartney is the speaking voice of Theodore, and Janice Karman is the singing voice.
No, he plays the voice of Theordore in Alvin and The Chipmunks, he just isn't makin anymore music.