Francis Xavier Aloysius James Jeremiah Keenan Wynn (July 27, 1916 – October 14, 1986) was an American character actor. His expressive face was his stock-in-trade; and though he rarely carried the lead role, he had prominent billing in most of his film and television roles.
Description above from the Wikipedia article Keenan Wynn, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb
As Colonel Bat Guano
Touch of Evil
As Bartender (uncredited)
The Last Unicorn
As Captain Cully / Harpy (voice)
Nashville
As Mr. Green
Herbie Rides Again
As Alonzo Hawk
The Night of the Grizzly
As Jed Curry
The Great Race
As Hezekiah
The Patsy
As Harry Silver
The Bastard
As Johnny Malcolm
Piranha
As Jack
The Long, Long Trailer
As Policeman
Without Love
As Quentin Ladd
Annie Get Your Gun
As Charlie Davenport
Snowball Express
As Martin Ridgeway
Point Blank
As Yost
A Hole in the Head
As Jerry Marks
Around the World Under the Sea
As Hank Stahl
Orca
As Novak
The War Wagon
As Wes Fletcher
Santa Claus Is Comin' to Town
As Winter Warlock (voice)
Kiss Me Kate
As Lippy
The Man in the Gray Flannel Suit
As Sgt. Caesar Gardella
Imps*
As Charlie
Wavelength
As Dan
Mission to Glory: A True Story
As Father at Trading Mission
Black Moon Rising
As Iron John
Since You Went Away
As Lieutenant Solomon
Song of the Thin Man
As Clarence "Clinker" Krause
Finian's Rainbow
As Senator Billboard Rawkins
Three Little Words
As Charlie Kope
The Americanization of Emily
As Old Sailor
King of the Roaring 20's – The Story of Arnold Rothstein
As Tom Fowler
Shack Out on 101
As George
Johnny Concho
As Barney Clark
The Belle of New York
As Max Ferris
The Killer Inside Me
As Chester Conway
Neptune's Daughter
As Joe Backett
Call to Glory
As Carl Sarnac
The Shaggy D.A.
As John Slade
Easy to Wed
As Warren Haggerty
Prime Risk
As Dr. Lasser
The Devil's Rain
As Sheriff Owens
Angels in the Outfield
As Fred Bayles
Best Friends
As Tom Babson
Code Two
As Police Sgt. Jumbo Culdane
Laserblast
As Colonel Farley
Stagecoach
As Luke Plummer
The Absent-Minded Professor
As Alonzo P. Hawk
Viva Max!
As General Lacomber
Mackenna's Gold
As Sanchez
Royal Wedding
As Irving Klinger / Edgar Klinger
My Dear Secretary
As Ronnie Hastings
A Piano for Mrs. Cimino
As Barney Fellman
The Glove
As Bill Schwartz
Pretty Maids All in a Row
As Chief John Poldaski
The Manipulator
As Old Charlie
It's a Big Country
As Michael Fisher
Hysterical
As Old Fisherman
When the West Was Fun: A Western Reunion
As Self
The Clock
As The Drunk
B.F.'s Daughter
As Martin Delwyn 'Marty' Ainsley
Battle Circus
As Sgt. Orvil Statt
Loving
As Edward
All the Brothers Were Valiant
As Silva
A Time to Love and a Time to Die
As Reuter
Men of the Fighting Lady
As Lt. Cmdr. Dodson
Phone Call from a Stranger
As Eddie Hoke
That Midnight Kiss
As Artie Geoffrey Glenson
The Crowded Sky
As Nick Hyland
The Internecine Project
As E.J. Farnsworth
Week-End at the Waldorf
As Oliver Webson
The Animals
As Pudge Elliott
The Dark
As Sherman 'Sherm' Moss
Marriage Is a Private Affair
As Maj. Bob Wilton
See Here, Private Hargrove
As Pvt. Mulvehill
Warning Shot
As Sgt. Ed Musso
Promise Her Anything
As Angelo Carelli
The Deep Six
As Lt. Cmdr. Mike Edge
Hit Lady
As Buddy McCormack
The Hucksters
As Buddy Hare
Parts: The Clonus Horror
As Jake Noble
Desperate Search
As Brandy
The Great Man
As Sid Moore
The Lucifer Complex
As U.S. Secretary of Defense
Honeymoon Hotel
As Mr. Sampson
No Leave, No Love
As Slinky
The Man with Icy Eyes
As Harry Davis
Nightmare in the Sun
As Junk dealer
Running Wild
As Ken Osanger
Love That Brute
As Bugsy Welch
Hyper Sapien: People from Another Star
As Grandpa
Don't Go Near the Water
As Gordon Ripwell
Assault on the Wayne
As Orville Kelly
Panhandle 38
As Billy Bronson / Kile Richards
Man in the Middle
As Lieut. Winston
Shoot, Gringo... Shoot!
As Major Charlie Doneghan
The Power and the Glory
As Wine Merchant
The Cockeyed Miracle
As Ben Griggs
The Naked Hills
As Sam Wilkins
Smith!
As Vince Heber
Sky Full of Moon
As Al
The Fuzzy Pink Nightgown
As Dandy
Sunburn
As Mark Elmes
Welcome to Hard Times
As Zar
Frame Up
As Inspector Donald
The Glass Slipper
As Kovin
Lost Angel
As Packy Roost
Just Tell Me What You Want
As Seymour Berger
The Scarface Mob
As Joe Fuselli
Kind Lady
As Mr. Edwards
Holiday for Sinners
As Joe Piavi
The Marauders
As Hook
Tennessee Champ
As Willy Wurble
That Kind of Woman
As Harry Corwin
The Monitors
As General Blackwish
80 Steps to Jonah
As Barney Glover
What Next, Corporal Hargrove?
As Private Mulvehill
Hijack!
As Donny McDonald
He Is My Brother
As Brother Dalton
Between Two Women
As Tobey
The Rock
As Self (uncredited)
The Perfect Furlough
As Harvey Franklin
Fearless Fagan
As Sgt. Kellwin
Joe Butterfly
As Harold Hathaway
The Magic Pear Tree
As Marquis
The Thrill of Brazil
As Steve Farraugh
I'll Give You a Million
As Duncan Williams
Coach
As Fenton Granger
Wild in the Sky
As Gen. Harry Gobohare
Sex and the Married Woman
As Uncle June
House on Greenapple Road
As Sgt. Charles Wilentz
Stage to Thunder Rock
As Ross Sawyer
Hard Knocks
As Jed
Somewhere I'll Find You
As Tom Purdy
The Three Musketeers
As Planchet
The Return of the Man from U.N.C.L.E.: The Fifteen Years Later Affair
As Piers Castillian
Son of Flubber
As Alonzo P. Hawk
Target Risk
As Simon Cusack
Cannon
As Eddie
Outlaw Motorcycles
The Last Precinct
As Butch
Northwest Rangers
As 'Slip' O'Mara
The Man Who Would Not Die
As Victor Slidell
Looking Back Before You Leap
As Sanger Rainsford (voice)
No Time at All
As Marshall Keats
Code of Vengeance
As Willis
A Woman for All Men
As Walter McCoy
Naples '44
As Self
The Last Tycoon
As Lou Myrick
The Capture of Grizzly Adams
As Bert Woolman
Joe Dancer II: The Monkey Mission
As Stump Harris
The Quest
As H.H. Small
A Touch of the Sun
VD Attack Plan
As Contagion Corps Sergeant (Narrator)
A Night Train to Terror
As Detective Hanratty
Texas Carnival
As Dan Sabinas
Skirts Ahoy!
As Keenan Wynn (uncredited)
Cancel My Reservation
As Sheriff 'Houndtooth' Riley
High Velocity
Terror in the Sky
As Milton
The Bay of St. Michel
Gene Kelly: Anatomy of a Dancer
As Self (archive footage)
The Young Lawyers
As Frank Barron
The Quest: The Longest Drive
As Cooler
Bikini Beach
As Harvey Huntington Honeywagon
The Legend of Earl Durand
As Col. Nightingale
Express to Terror
As Winfield Root
Mirrors
As Reverend Dahlstrom
The Billion Dollar Threat
As Ely
That's Entertainment, Part II
As (archive footage)
Twenty Years After
As (archive footage)
Jamaican Gold
As Meat Cleaver Stewart
Run Like a Thief
As Willy Gore
Tales from the Darkside
As Duncan Williams
The Losers
As Burgundy Smith
The Mechanic
As Harry McKenna
Ziegfeld Follies
As Caller (segment "Number Please")
Once Upon a Time in the West
As Sheriff
Mom, the Wolfman and Me
As Grandpa Bergman
Requiem for a Heavyweight
As Maish Rennick
For Me and My Gal
As Eddie Milton (uncredited)
Black City
As Di Gennaro
Demon and the Mummy
As Capt. Joe “Mad Dog” Siska
St. Elsewhere
Movin' On
Burke's Law
As Kid Corey
The Rookies
Kraft Suspense Theatre
As Charlie Kling
The Love Boat
As Charles B Dobbs
The Bionic Woman
The Greatest American Hero
Hawaii Five-O
As Hummel
Quincy, M.E.
Route 66
One Day at a Time
Gomer Pyle, U.S.M.C.
Highway to Heaven
Alias Smith and Jones
Manimal
Playhouse 90
As Maish Rennick
Naked City
As Maxwell Ronan
The Merv Griffin Show
As Self
The Mod Squad
Medical Center
Studio One
As Graham Hicks
Combat!
As Col. Clyde
Dallas
As Digger Barnes
General Electric Theater
As Dandy
Emergency!
Cannon
The Islanders
As Agent Blake
Hallmark Hall of Fame
As Lambert Giles
The Twilight Zone
As Gregory West
The Fall Guy
Kolchak: The Night Stalker
As Capt. Joe 'Mad Dog' Siska
Alfred Hitchcock Presents
As William Botibol
Target: The Corruptors!
Bus Stop
The Troubleshooters
As Kodiak
Westinghouse Desilu Playhouse
As Self
The Wild Wild West
Rawhide
As Simon Royce
Police Woman
Call to Glory
As Carl Sarnac
The Girl with Something Extra
Lancer
The Aquanauts
As George Morrisey
Schlitz Playhouse of Stars
As Bill Ottman
This Is Your Life
As Self
Bob Hope Presents the Chrysler Theatre
Then Came Bronson
The Littlest Hobo
Tales from the Darkside
As Duncan Williams
Ben Casey
The New Breed
As Ronson
Palmerstown, U.S.A.
Summer Fun
The Last Precinct
As Butch
The Steve Allen Show
As Self
Grizzly Adams
Vacation Playhouse
The DuPont Show with June Allyson
As T. J.
The Roaring 20's
77 Sunset Strip
As Lolly
The Quest
As H.H. Small
The Untouchables
As Augie 'The Banker' Ciamino
Screen Director's Playhouse
As Gambler
Taxi
As Leo Goodman
The Ed Sullivan Show
As Self (archive footage)
The Name of the Game
As Ed Wallaby
The Littlest Hobo
As Colton
Valentine's Day
As Horace Newman
Bearcats!
As Mason Latimer
McMillan and Wife
As Professor Zagmeyer
The Wonderful World of Disney
As Alonzo P. Hawk (archive footage)
Supertrain
As Winfield Root
Bonanza
As Sergeant O'Rourke
Hardcastle and McCormick
As Henry Willard
What's My Line?
As Self - Panelist