David McMahon was born on December 11, 1910 in New York City, New York. He was an actor, known for The Creature Walks Among Us (1956), Patty (1962) and It Conquered the World (1956). He was married to Dorothea McMenamin. He died on January 27, 1972 in Pasadena, California.
Known for Strangers on a Train 1951 Rebel Without a Cause 1955 The War of the Worlds 1953 The Thing from Another World 1951 Series ★ 7.8 Alfred Hitchcock Presents 1955
Mr. Barnes ★ 7.5 Birdman of Alcatraz 1962
Inmate (uncredited) ★ 7.2 Where the Sidewalk Ends 1950
Harrington (uncredited) ★ 7.1 The Enforcer 1951
★ 7.1 Adam's Rib 1949
Reporter (uncredited) ★ 7 Executive Suite 1954
Reporter (uncredited) ★ 7 The Breaking Point 1950
Coast Guardsman (uncredited) ★ 6.9 O. Henry's Full House 1952
Cop (segment "The Clarion Call") (uncredited) ★ 6.9 I Was a Male War Bride 1949
Army Chaplain (uncredited) ★ 6.9 Pitfall 1948
Police Lieutenant ★ 6.8 Party Girl 1958
Jail Guard (uncredited) ★ 6.8 Mystery Street 1950
Detective Garrity (uncredited) ★ 6.8 The Great Sinner 1949
Station master (uncredited) ★ 6.7 Operation Mad Ball 1957
MSgt. Pringle (uncredited) ★ 6.7 The Spirit of St. Louis 1957
Lane (uncredited) ★ 6.7 Don't Bother to Knock 1952
Uniformed Cop at End (uncredited) ★ 6.7 Cry Danger 1951
Trailer Park Officer (uncredited) Series ★ 6.6 Wagon Train 1957
Wagon Train Member ★ 6.6 Storm Warning 1951
Hollis (uncredited) ★ 6.5 Cowboy 1958
Cattle Buyer ★ 6.2 The FBI Story 1959
Klansman (uncredited) ★ 6.2 I Died a Thousand Times 1955
Auto Court Owner (uncredited) ★ 5.9 Roadblock 1951
Police Radio Operator (uncredited) ★ 5.6 The Monster That Challenged the World 1957
Patterson ★ 5 The Deadly Mantis 1957
Capt. Frank Carver ★ 4.8 It Conquered the World 1956
Gen. Carpenter Start from another title 
