A scientist tries to teach a dolphin named Peter to understand and mimic human speech in order to speak to extraterrestrial life.
Christopher Riley
Director
Steven Macintosh
Narratorvoice
John C. Lilly
Self - scientistarchiveFootage
Jeff Bridges
Self - John C. Lilly's Friend
D. Graham Burnett
Self - historian of science
Mary Lilly
Self - John C. Lilly's wife