Alfred Cornelius Lynch was an English actor on stage, film and television.

The Password Is Courage is a 1962 British comedy-drama war film from Metro-Goldwyn-Mayer, based on John Castle's 1954 World War II memoir of the same name. Written, produced, and directed by Andrew L. Stone, the film stars Dirk Bogarde, Maria Perschy, and Alfred Lynch. It is a lighthearted take on the true story of Sergeant-Major Charles Coward, written under the pseudonym John Castle by Ronald Payne and John Williams Garrod.