
Mason Alan Dinehart Sr. (born Harold Alan Dinehart; October 3, 1889 – July 18, 1944) was an American actor, director, writer, and stage manager.

Girl Trouble
1942 · as Charles Barrett

Parole!
1936 · as Richard Mallard

Woman-Wise
1937 · as Richards

Her Bodyguard
1933 · as Lester Cunningham

Born to Dance
1936 · as McKay

Jimmy the Gent
1934 · as Charles Wallingham

The Whistler
1944 · as Gorman

The Cat's-Paw
1934 · as Mayor Ed Morgan

Rebecca of Sunnybrook Farm
1938 · as Purvis

The Lottery Lover
1935 · as Edward Arthur 'Tank' Tankersley

The Trial of Vivienne Ware
1932 · as Prosecutor

The World Changes
1933 · as Ogden Jarrett

Lawyer Man
1932 · as Granville Bentley

The Sin of Nora Moran
1933 · as District Attorney John Grant

Girls About Town
1931 · as Jerry Chase

Baby Take a Bow
1934 · as Welch

A Study in Scarlet
1933 · as Merrydew

Redheads on Parade
1935 · as George Magnus