Pat O'Brien (born William Joseph Patrick O'Brien) was an American stage, screen, radio, and television actor. He was a star during the first several years of his film career, the height of his popularity being during the 1930s and 1940s.

Filmography

• 1981Ragtime — Delmas
• 1980Scout's Honor — Mr. Caboose
• 1978The End — Ben Lawson
• WKRP in Cincinnati
• 1977Billy Jack Goes to Washington — President of the Senate
• 1976Kiss Me... Kill Me — Jimmy, the morgue attendant
• 1975The Sky's the Limit — Abner Therman
• Happy Days
• 1973Amanda Fallon — Emory
• Banyon
• 1972The Adventures of Nick Carter — Hallelujah Harry
• 1972Welcome Home, Johnny Bristol — Sgt. McGll
• Alias Smith and Jones
• McCloud
• 1970The Phynx — Pat O’Brien
• 1969The Over the Hill Gang — Captain Oren Hayes
• Branded
• 1965Town Tamer — Judge Murcott
• Bob Hope Presents the Chrysler Theatre
• Kraft Suspense Theatre — Lt. John Curwood, Inspector Dan Zarilla
• 1962Babe Ruth Story: That Ever Livin' Babe — Narrator
• Going My Way
• 1962The Road to Hong Kong — Chinese Restaurateur (uncredited)
• The Virginian — J. Jimerson Jones, Doc Bigelow
• Harrigan and Son
• The Best of the Post — Mike Breen
• 1959Some Like It Hot — Detective Mulligan
• 1958The Last Hurrah — John Gorman
• 1957Invitation to a Gunfighter — Sheriff Kyle Bickford
• 1957Kill Me Tomorrow — Bart Crosbie
• Telephone Time
• 1955Inside Detroit — Gus Linden
• Science Fiction Theatre
• Climax! — Police Lieutenant Moore, Ed Talbot
• 1954Jubilee Trail — Ernest 'Texas' Conway
• 1954Ring of Fear — Frank Wallace
• General Electric Theater — Major Irish
• 1952Okinawa — Lt. Cmdr. Hale
• The Ford Television Theatre — Lt. V. Keever
• 1951Criminal Lawyer — James 'Jimmy' Regan
• Schlitz Playhouse of Stars — John Wentworth
• 1951The People Against O'Hara — Det. Vincent Ricks
• 1950Johnny One-Eye — Martin Martin
• Lux Video Theatre — Tim Larkin, Captain Barnaby, Joe Crandall, Charley Hackett, George Morrell, Eddie Gorman
• 1950The Fireball — Father O'Hara
• 1949A Dangerous Profession — Joe Farley
• 1948Fighting Father Dunne — Father Peter J. Dunne
• Ford Theatre
• Studio One — Mike Waterson
• 1948The Boy with Green Hair — Gramp Fry
• 1947Riff-Raff — Dan Hammer
• 1946Crack-Up — George Steele
• 1946Perilous Holiday — Patrick Nevil
• 1945Having Wonderful Crime — Michael J. Malone
• 1945Man Alive — Michael O'Flaherty 'Speed' McBride
• 1944Marine Raiders — Maj. Steve Lockhart
• 1944Secret Command — Sam Gallagher
• 1943Bombardier — Chick Davis
• 1943His Butler's Sister — Martin Murphy
• 1943The Iron Major — Francis William 'Frank' / 'Cav' Cavanaugh
• 1942Broadway — Dan McCorn
• 1942Flight Lieutenant — Samuel J. 'Sam' Doyle
• 1942The Navy Comes Through — Chief Michael 'Mike' Mallory
• 1942Two Yanks in Trinidad — Tim Reardon
• 1940'Til We Meet Again — Steve Burke
• 1940Castle on the Hudson — Warden Walter Long
• 1940Escape to Glory — Mike Farrough
• 1940Flowing Gold — Ian 'Hap' O'Connor
• 1940Knute Rockne All American — Knute Rockne
• 1940The Fighting 69th — Father Duffy
• 1940Torrid Zone — Steve Case
• 1939Indianapolis Speedway — Joe Greer
• 1939Off the Record — Thomas "Breezy" Elliott
• 1939Slightly Honorable — John Webb
• 1939The Kid from Kokomo — William Jennings 'Billy / 'Square Shooting Murph' Murphy
• 1939The Night of Nights — Dan O'Farrell
• 1938Angels with Dirty Faces — Jerry Connolly
• 1938Boy Meets Girl — J. Carlyle 'J.C.' Benson
• 1938Breakdowns of 1938 — Pat O'Brien (archive footage) (uncredited)
• 1938Cowboy from Brooklyn — Roy Chadwick
• 1938Garden of the Moon — John Quinn
• 1938Out Where the Stars Begin — Pat O'Brien
• 1938Women Are Like That — Bill Landin
• 1937Back in Circulation — Bill Morgan
• 1937San Quentin — Capt. Stephen Jameson
• 1937Slim — Red Blayd
• 1937Submarine D-1 — Butch Rogers
• 1937The Great O'Malley — James Aloysius 'Jim' / 'Jimmy' O'Malley
• 1936Ceiling Zero — Jake L. Lee
• 1936China Clipper — Dave Logan
• 1936I Married a Doctor — Dr. William P. Kennicott
• 1936Public Enemy's Wife — Lee Laird
• 1935Devil Dogs of the Air — Lieut. Brannigan
• 1935In Caliente — Larry MacArthur
• 1935Oil for the Lamps of China — Stephen Chase
• 1935Page Miss Glory — Click Wiley
• 1935Stars Over Broadway — Al McGillevray
• 1935The Irish in Us — Pat O'Hara
• 1934Flirtation Walk — "Scrapper" Thornhhill
• 1934Gambling Lady — Charlie Lang
• 1934Here Comes the Navy — Biff Martin
• 1934I Sell Anything — "Spot Cash" Cutler
• 1934I've Got Your Number — Terry Riley
• 1934The Personality Kid — Ritzy
• 1934Twenty Million Sweethearts — Rush Blake
• 1933Bombshell — Jim Brogan
• 1933Bureau of Missing Persons — Detective Butch Saunders
• 1933College Coach — Coach Gore
• 1933Destination Unknown — Matt Brennan
• 1933Laughter in Hell — Barney Slaney
• 1933The World Gone Mad — Andy Terrell
• 1932Air Mail — Duke Talbot
• 1932American Madness — Matt Brown
• 1932Flaming Gold — Ben Lear
• 1932Hell's House — Matt Kelly
• 1932Hollywood Speaks — Jimmy Reed
• 1932Scandal for Sale — Waddell
• 1932The Final Edition — Sam Bradshaw
• 1932The Strange Case of Clara Deane — Frank Deane
• 1932Virtue — Jimmy Doyle
• 1931Consolation Marriage — Steve Porter
• 1931Crimes Square — Marty
• 1931Flying High — Sport Wardell
• 1931Honor Among Lovers — Conroy (uncredited)
• 1931Personal Maid — Peter Shea
• 1931The Front Page — Hildy Johnson
• 1930Compliments of the Season — Police Detective (uncredited)
• 1930My Mistake
• 1930The Voice of Hollywood — Self/Host

Appearances as themselves (30)

• 2013Classic Movie Bloopers: Uncensored — Self (archive footage)
• 2008You Must Remember This: The Warner Bros. Story — Self (archive footage)
• 2005Angels with Dirty Faces: Whaddya Hear? Whaddya Say? — Self (archive footage)
• 1999Dill Scallion — Self
• 1995The First 100 Years: A Celebration of American Movies — Self (archive footage)
• 1983Hollywood Out-takes and Rare Footage — Self (archive footage) (uncredited)
• 1981James Cagney: That Yankee Doodle Dandy — Self
• The Merv Griffin Show — Self
• The Tonight Show Starring Johnny Carson — Self
• The Mike Douglas Show — Self - Co-Host
• 1959I Captured the King of the Leprechauns — Self
• Kraft Music Hall — Self
• This Is Your Life — Self
• 1951The Hills of Ireland — Self - Narrator
• The Colgate Comedy Hour — Self
• What's My Line? — Self
• The Ed Sullivan Show — Self
• 1947Blow-Ups of 1947 — Self
• 1941Breakdowns of 1941 — Self (archive footage) (uncredited)
• 1940Breakdowns of 1940 — Self
• 1939Breakdowns of 1939 — Self
• 1938Swingtime in the Movies — Himself (uncredited)
• 1937Breakdowns of 1937 — Self
• 1936Breakdowns of 1936 — Self
• 1936Screen Snapshots (Series 16, No. 1) — Self
• 1935A Dream Comes True — Himself (uncredited)
• 1935A Trip Thru a Hollywood Studio — Himself (uncredited)
• 1935Things You Never See on the Screen — Self
• 1934Screen Snapshots No. 11 — Himself
• 1934Studio Highlights — Self (archive footage)