Dennis O'Keefe (born Edward Vance Flanagan;[3][4] March 29, 1908 – August 31, 1968) was an American actor and screenwriter.

In a 1946 newsreel following Howard Hughes' calamitous plane wreck into a neighbor's Beverly Hills house, O'Keefe can be seen walking through the home inspecting the damage.

During the 1950s, O'Keefe made guest appearances as himself, or in acting roles, on episodes of a number of television series, such as Justice, The Ford Show, Studio 57, and Climax!.

His Don't Pull Your Punches was produced by Warner Bros.[6] In 1947, he was working on plans to co-produce and act in Drawn Sabers, another of his stories.

[18] A heavy cigarette smoker, O'Keefe died of lung cancer in 1968 at the age of 60 at St. John's Hospital in Santa Monica, California.

He was buried at Wee Kirk O'the Heather at Forest Lawn Memorial Park in Glendale, California.