
Biography
Robert O'Connor was an American actor. He had a lengthy career as a stage actor on Broadway and in vaudeville from 1905-1931; using the stage name Robert O'Connor in both musicals and plays. After transitioning to film, he also used the names Robert Emmett O'Connor or Robert E. O'Connor for his screen credits. He appeared in more than 200 films between 1919 and 1950; specializing in portraying policemen. He is probably best remembered as the warmhearted bootlegger Paddy Ryan in The Public Enemy (1931) and as police Sergeant Henderson pursuing the Marx Brothers in A Night at the Opera (1935). He also appeared as Jonesy in Billy Wilder's 1950 film Sunset Boulevard. He also made an appearance at the very beginning and very end of the Metro-Goldwyn-Mayer cartoon short Who Killed Who? (1943).
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Filmography50+ titles

Sunset Boulevard

Park Avenue Logger

A Night at the Opera

A Star Is Born

The Public Enemy

The Hucksters

The Clock

The Thin Man Goes Home

Lady for a Day

Easter Parade

Meet Me in St. Louis

Whistling in Brooklyn

Desire

Gabriel Over the White House

Blessed Event

American Madness

Up Goes Maisie

Anchors Aweigh

Best Foot Forward

Little Lord Fauntleroy

Picture Snatcher

Blonde Venus

Taxi

The Romance of Rosy Ridge

Maisie Gets Her Man

Paid

The Harvey Girls

The Big House

They Were Expendable

High Wall

Adventure

Dance, Girl, Dance

The Human Comedy

Man to Man

Made for Each Other

Boy of the Streets

His Royal Slyness

Undercurrent

Courage of Lassie

Star of Midnight

The Beast of the City

Up the River

Bud Abbott and Lou Costello in Hollywood

I Take This Oath

You Can't Get Away with Murder

Till the Clouds Roll By

High Barbaree

Our Blushing Brides

Wells Fargo

Streets of New York