When his father runs off and his mother hooks up with a mustachioed new beau, eleven-year-old Mark becomes convinced that an uninvited talkative space alien, going by the name "Split," has taken up telepathic residence in his mind, and is leading him to question the norms of planet Earth. Only one teacher is willing to entertain the possibility that Mark just might be telling the truth.
Mark Draisey
as Mark
Steve Reader
as David Browning
Madeline Aitken
as Mother
Harry Dickinson
as Uncle Barry
Ron Creber
as Doctor
Tim McGill
as Colin
Dave Thomas
as Headmaster
Jack Foster
as Shop Manager
Peter Bridges
as Railway Official
