| Osment, Haley Joel |
David |
| O'Connor, Frances |
Monica Swinton |
| Robards, Sam |
Henry Swinton |
| Thomas, Jake |
Martin Swinton |
| Law, Jude |
Gigolo Joe |
| Hurt, William |
Prof. Hobby, the Visionary |
| Leung, Ken |
Syatyoo-Sama |
| Gregg, Clark |
Supernerd |
| Sussman, Kevin |
Supernerd |
| Gallop, Tom |
Supernerd |
| Osment, Eugene |
Supernerd |
| Grace, April |
Female Colleague |
| Winston, Matt |
Executive |
| Grdevich, Sabrina |
Secretary |
| Greenly, Theo |
Todd |
| Kissner, Jeremy James |
Kid |
| McEwin, Dillon |
Kid |
| Morrow, Andy |
Kid |
| Youngberg, Curt |
Kid |
| Scott, Ashley |
Gigolo Jane |
| Prosky, John |
Mr. Williamson, the Bellman |
| Colantoni, Enrico |
The Murderer |
| Malcomson, Paula |
Patricia in Mirrored Room (as Paula Malcolmson) |
| Gleeson, Brendan |
Lord Johnson-Johnson |
| Berresse, Michael |
Stage Manager |
| King, Haley |
Amanda |
| Morris, Kathryn |
Teenage Honey |
| Chase, Daveigh |
Child Singer |
| Turk, Brian |
Backstage Bull |
| Machado, Justina |
Assistant |
| Rigby, Tim |
Yeoman |
| Knight, Lily |
Voice in the Crowd (voice) |
| Carenzo, Vito |
Big Man |
| Owen, Rena |
Ticket Taker |
| Scott, Alan |
Worker (as J. Alan Scott) |
| Alexi-Malle, Adam |
Crowd Member |
| Mason, Laurence |
Tech Director |
| Sexton, Brent |
Russell |
| Palmer, Ken |
Percussionist |
| Sutter, Jason |
Percussionist |
| Wiles, Michael Shamus |
Cop |
| McCool, Kelly |
Kate, the Holographic Girl |
| Bellar, Clara |
FemMecha Nanny |
| Campbell, Keith |
Roadworker |
| Rhoze, Tim |
Laboratory Technician (as Tim Edward Rhoze) |
| Jansen, Jim |
Chef |
| Coleman, Eliza |
General Circuita |
| Smith, R. David |
Welder |
| Wilderson, Wayne |
Comedian |
| Harwell, Bobby |
TV Face |
| Scudder, Billy |
Mechanic |
| Angel, Jack |
Teddy (voice) |
| Williams, Robin |
Dr. Know (voice) |
| Kingsley, Ben |
Specialist (voice) |
| Streep, Meryl |
Blue Mecha (voice) |
| Rock, Chris |
Comedian (voice) |
| Bauersfeld, Erik |
Gardener (voice) |
| Mantell, Michael |
Dr. Frazier at Cryogenic Institute |
| Pérez, Miguel |
Robot Repairman (as Miguel Perez) |
| Malloy, Matt |
Robot Repairman |
| Grenier, Adrian |
Teen in Van |
| Staubach, Mark Allan |
Teen in Van (as Mark Staubach) |
| Fishman, Michael |
Teen in Van |
| Salla, Jeanine |
Sentient Machine Therapist |
| Salla, Laia |
Mr. Chan's Assistant |
| Fletcher, Diane |
Sentient Machine Security |
| Nei, Kate |
Toe Bell Ringing |
| Gilbert, Claude |
Cybertronics - Room 93056 |
| King, Red |
Covert Information Retrieval |
| Jourgensen, Al |
Flesh Fair Band Member |
| Barker, Paul |
Flesh Fair Band Member |
| Brody, Max |
Flesh Fair Band Member |
| Buford, Duane |
Flesh Fair Band Member |
| Grossman, Adam |
Flesh Fair Band Member |
| Coon, Ty |
Flesh Fair Band Member |
| Felix, Kelly |
Butler Mecha (uncredited) |
| Harmon, John |
Medic Mecha (uncredited) |
| Jay, Baron |
Mecha Robot (uncredited) |
| Katz, Claudia |
Mecha Robot (uncredited) |
| Lohmann, Katie |
Pleasure Mecha (uncredited) |
| Martin, Paul Isaac |
Crash Test Dummy (uncredited) |
| Mobley, Sarena |
Exotic Girl (uncredited) |
| Palermo, Chris |
Red Biker Hound (uncredited) |
