
Movies (Acting Roles)
Sorted by Release DateTV 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

Doomwatch
Henry Knowles was 28+ in Doomwatch as 'Dr. Richard Poole'.TV Show Released: First Air Date
Mon, Feb 09 1970
Mon, Feb 09 1970

Public Eye
Henry Knowles was 23+ in Public Eye as 'Tom Dixon'.TV Show Released: First Air Date
Sat, Jan 23 1965
Sat, Jan 23 1965