The Atomic Space Bug is a 1999 horror film directed by Jonathan M. Parisen and starring Conrad Brooks ("Plan 9 from Outer Space"). "The Atomic Space Bug" is Parisen's homage to such fifties films as "Robot Monster" and "Plan 9 from Outer Space". The film is about a giant insect-like creature that terrorizes a small town.
Conrad Brooks has been acting for over 40 years.
Conrad Brooks acted in a film from the 50's and he was in a 1999 film. So even if the first film was in 1959, that is still 40 years at least. 