Beatrix Lehmann
— Dr. Susan Calvin
Tenniel Evans
— QT-1
David Healy
— Greg Powell
Brian Davies
— Mike Donovan
Julie Allan
— Martha Powell
Judy Keirn
— Abigail Donovan
Michael Wolf
— Van Muller
James Cossins
— Interviewer
David Graham
— Robot (voice)
Roy Skelton
— Robot (voice)
Hayden Jones
— Robot (voice)
Chris Blackwell
— Robot
Tony Barnes
— Robot
Derek Davis
— Robot
Ron Eagleton
— Robot
Graham Lawson
— Robot
George Rutland
— Robot
Robin Sherringham
— Robot
Jim Wyatt
— Robot