
Nicholas Benton "Ben" Alexander III (June 27, 1911 – July 5, 1969) was an American motion picture actor, who started out as a child actor in 1916. He is best remembered for his role as Officer Frank Smith in the Dragnet franchise.

All Quiet on the Western Front
1930 · as Franz Kemmerich

The Wet Parade
1932 · as Evelyn's Friend (uncredited)

Man in the Shadow
1957 · as Ab Begley

Shall We Dance
1937 · as Evans (uncredited)

Jealous Husbands
1923 · as Bobbie / Spud

Suicide Fleet
1931 · as Kid

The Spy Ring
1938 · as Capt. Don Mayhew

The Lady of the Dugout
1918 · as The Lady's son

Dragnet
1954 · as Officer Frank Smith

Stage Mother
1933 · as Francis Nolan

Grand Old Girl
1935 · as Tom Miller

Annapolis Farewell
1935 · as Adams

It's a Wise Child
1931 · as Bill Stanton

Reckless Roads
1935 · as Wade Adams

Big Tremaine
1916 · as Child

The Life of Vergie Winters
1934 · as Barry Preston

The Family Honor
1920 · as Little Ben Tucker

The Little American
1917 · as Bobby Moore