Tim Johnson Director Karey Kirkpatrick Director, Screenwriter Bruce Willis RJ Voice Garry Shandling Verne Voice Steve Carell Sammy the Squirrel Voice William Shatner Ozzie the Possum Voice Allison Janney Gladys Voice Wanda Sykes Stella the Skunk Voice Thomas Haden Church Dwayne LaFontaine Voice Avril Lavigne Heather Voice Eugene Levy Lew the Porcupine Voice Catherine O'Hara Penny the Porcupine Voice Nick Nolte Vincent Voice Len Blum Screenwriter Lorne Cameron Screenwriter David Hoselton Screenwriter Bill Damaschke Executive Producer Bonnie Arnold Producer Christian Kubsch Producer Hans Zimmer Original Music John K. Carr Film Editing Kathy Altieri Production Design Paul Shardlow Art Director Jane Poole Costume Design Leslee Feldman Casting