Movies (Acting Roles)
Sorted by Release DateInstitute for Revenge
Dennis O'Flaherty was ? in Institute for Revenge as 'Arthur, Roberto's Pilot'.Movie Released: Mon, Jan 22 1979
It Lives Again
Dennis O'Flaherty was ? in It Lives Again as 'Dr. Peters'.Movie Released: Wed, May 10 1978
Like Father, Like Son
Dennis O'Flaherty was ? in Like Father, Like Son as 'Marty'.Movie Released: Sun, Aug 01 1965
The Proper Time
Dennis O'Flaherty was ? in The Proper Time as 'Doug Fearson'.Movie Released: Fri, Jan 01 1960
TV Shows (Acting Roles)
Sorted by Release DateAges in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages