Biologist Alex Brisco develops a new method to communicate with chimpanzees. Instead of using machines, she teaches the chimps simple sign language. Her research is overlooked by ignorant colleagues, but one man, Mark, a cellist, helps Alex with her research.
Karen Allen
as Alex Bristow
Armand Assante
as Mark Mathias
Josh Mostel
as Mel Gorsky
Holly Hunter
as Coral Grable
Richard Libertini
as Doctor Parrish
Joyce Brothers
as Herself
Alice Drummond
as Site Committee
Nan Martin
as Mrs. Norton
Alexa Kenin
as
Jon Matthews
as Tyler Forbes
Crystal Buda
as Cleo Grable
Ivan Bonar
as Dr. Ridley
