* Antonio Banderas as Jack
* Melanie Griffith as Doctor
* Robert Forster as Detective
* Dylan McDermott as The Man
* Hakeem Kae-Kazim as The General
* Tim Robbins as The Inventor (voice)
* John Malkovich as The Detective (voice)
It's worth noting that Tim Robbins and John Malkovich only provide voices for the film, not on-screen appearances.