Martin Brundle, born of the human/fly, is adopted by his father's place of employment (Bartok Inc.) while the employees simply wait for his mutant chromosomes to come out of their dormant state.
Eric Stoltz
as Martin Brundle
Daphne Zuniga
as Beth Logan
Lee Richardson
as Anton Bartok
John Getz
as Stathis Borans
Frank C. Turner
as Shepard
Ann Marie Lee
as Dr. Jainway
Garry Chalk
as Scorby
Saffron Henderson
as Ronnie
Harley Cross
as 10 year old Martin
Matthew Moore
as 4 year old Martin
Rob Roy
as Wiley
Andrew Rhodes
as Hargis