Robin Williams
Embeth Davidtz
Sam Neill
Oliver Platt
Kiersten Warren
Wendy Crewson
Hallie Kate Eisenberg
Lindze Letherman
Angela Landis
John Michael Higgins

Robin Williams as Andrew Martin
Embeth Davidtz as Little Miss Amanda Martin/Portia Charney
Sam Neill as 'Sir' Richard Martin
Oliver Platt as Rupert Burns
Kiersten Warren as Galatea
Wendy Crewson as 'Ma´am' Martin
Hallie Kate Eisenberg as 7 Year Old 'Little Miss' Amanda Martin
Lindze Letherman as 9 Year Old 'Miss' Grace Martin
Angela Landis as 'Miss' Grace Martin
John Michael Higgins as Bill Feingold, Martin's Lawyer
Bradley Whitford as Lloyd Charney
Igor Hiller as 10 Year Old Lloyd Charney
Joe Bellan as Robot Delivery Man
Brett Wagner as Robot Delivery Man
Stephen Root as Dennis Mansky, Head of NorthAm Robotics