What was Barry Keegan known for?

The Avengers, King of Kings, I Promised to Pay, and The Citadel

FAQ

When did Barry Keegan die?
September 1977
Where did Barry Keegan die?
London, England, UK
When was Barry Keegan born?
September 12, 1922
Where was Barry Keegan born?
Dublin, Ireland
What was Barry Keegan's birth name?
John Barry Keegan
What was Barry Keegan known for?
The Avengers, King of Kings, I Promised to Pay, and The Citadel