- Tom Kenny as Jack the Snake.
- Tara Strong as Tara the Snake.
- Kath Soucie as Mavis the Snake.
- Bill Hader as Bart the Eagle.
- Tony Jay as Tony the Lizard.
- Jack Angel as Jack the Lizard.
- Tim Curry as Donald the Big Eagle and Joe the Eagle.
- Frank Welker as Frank the Snake.
- Jim Cummings as Announcer.
- Jaleel White as Worm and other Worms.
- July 21, 2008 (USA and Canada)