Mike Mitchell Director Jason Lee Dave Seville Actor David Cross Ian Actor Jenny Slate Zoe Actor Justin Long Alvin Voice Matthew Gray Gubler Simon Voice Jesse McCartney Theodore Voice Amy Poehler Eleanor Voice Anna Faris Jeanette Voice Christina Applegate Brittany Voice Alan Tudyk Simone Voice Andy Buckley Capt. Correlli Actor Jonathan Aibel Screenwriter Glenn Berger Screenwriter Janice Karman Producer Ross Bagdasarian Jr. Producer Karen Rosenfelt Executive Producer Arnon Milchan Executive Producer Neil A. Machlis Executive Producer Steve Waterman Executive Producer Thomas E. Ackerman Cinematographer Richard Holland Production Design Peter Amundson Film Editing Mark Mothersbaugh Original Music Alexandra Welker Costume Design Allison Jones Casting Don Macaulay Art Director Rose Marie McSherry Set Decoration