Actors:
regulars:,
Peter Williams as Professor Wedgwood,
Harold Goldblatt as Dr. O"Connell,
Gerald Flood as Conway Henderson,
Gillian Ferguson as Valerie Wedgwood,
Richard Dean as Jimmy Wedgwood,
Stewart Guidotti as Geoffrey Wedgwood,
Pamela Barney as Professor Mary Meadows,
Irene Sutcliffe as Jean Cary,
Hugh Evans as Ian Murray,
Astor Sklair as John Field,
Michael Guest as Michael Kennedy,
