
William Henry Pratt (November 23, 1887 – February 2, 1969), better known as Boris Karloff, was an English-born actor who emigrated to Canada in 1909. Karloff is best remembered for his roles in horror films and his portrayal of Frankenstein's monster in Frankenstein (1931), Bride of Frankenstein (1935), and Son of Frankenstein (1939). His popularity following Frankenstein was such that for a brief time he was billed simply as "Karloff" or "Karloff the Uncanny". His best-known non-horror role is as the Grinch in the television special of Dr. Seuss’s How the Grinch Stole Christmas!.
William Henry Pratt (November 23, 1887 – February 2, 1969), better known as Boris Karloff, was an English-born actor who emigrated to Canada in 1909. Karloff is best remembered for his roles in horror films and his portrayal of Frankenstein's monster in Frankenstein (1931), Bride of Frankenstein (1935), and Son of Frankenstein (1939). His popularity following Frankenstein was such that for a brief time he was billed simply as "Karloff" or "Karloff the Uncanny". His best-known non-horror role is as the Grinch in the television special of Dr. Seuss’s How the Grinch Stole Christmas!.
Description above from the Wikipedia article Boris Karloff, licensed under CC-BY-SA, full list of contributors on Wikipedia.
IMDb: https://www.imdb.com/title/nm0000472
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Legacy of Screams: The Evolution of Horror Movies
Character:Self - (archive footage)
Release Date:21/11/2025

The Last Repair Shop
Character:The Monster (archive footage) (uncredited)
Release Date:16/02/2024

The Dark Universe
Character:Frankenstein (archivo de imagen)
Release Date:10/03/2023

The Dark Universe
Character:La Momia (archivo de imagen)
Release Date:10/03/2023

Boris Karloff: The Rest of the Story
Character:Self - Interviewee
Release Date:18/10/2022

Boris Karloff: The Man Behind the Monster
Character:Self (archive footage)
Release Date:17/09/2021

Hollywood in the Atomic Age: Monsters! Martians! Mad Scientists!
Character:Self (archive footage)
Release Date:13/02/2021

Jack Pierce: The Man Who Made the Monsters
Character:Self (archive footage)
Release Date:02/10/2015

Monster Madness: The Golden Age of the Horror Film
Character:Various roles (archive footage)
Release Date:01/08/2014

A Masque of Madness (Notes on Film 06-B, Monologue 02)
Character:Self (archive footage)
Release Date:14/08/2013

Classic Movie Bloopers: Uncensored
Character:Self (archive footage)
Release Date:29/01/2013

The Complete Bob Wilkins Creature Features
Character:
Release Date:23/08/2012

He Who Made Monsters: The Life and Art of Jack Pierce
Character:Self (archive footage)
Release Date:09/07/2008

Bela Lugosi: The Fallen Vampire
Character:Himself (archive footage)
Release Date:24/10/2007

Ian Rankin Investigates: Dr. Jekyll & Mr. Hyde
Character:Cabman John Gray (archive footage)
Release Date:16/06/2007

Famous Monster: Forrest J Ackerman
Character:Self (archive footage)
Release Date:16/05/2007

Lugosi: The Dark Prince
Character:Self (archive footage)
Release Date:26/09/2006

Karloff: The Gentle Monster
Character:Self (archive footage)
Release Date:30/04/2006

Terror in the Tropics
Character:Mr. Wong (archive footage)
Release Date:31/01/2006

Monster Movie Trivia Quiz
Character:
Release Date:01/04/2004

The Mesmerist
Character:(archive footage)
Release Date:07/11/2003

The 'Frankenstein' Files: How Hollywood Made a Monster
Character:Self (archive footage)
Release Date:01/11/2002

Heroes of Horror
Character:(archive footage)
Release Date:01/01/2001

The American Nightmare
Character:Self
Release Date:11/09/2000

Mummy Dearest: A Horror Tradition Unearthed
Character:Self (archive footage)
Release Date:29/08/2000

The Many Faces of Dracula
Character:The Monster (archive footage)
Release Date:01/01/2000

Monster by Moonlight! The Immortal Saga of 'The Wolf Man'
Character:Self (archive footage)
Release Date:01/01/1999

Universal Horror
Character:(archive footage)
Release Date:08/10/1998

The Universal Story
Character:Self (archive footage)
Release Date:21/04/1996

Abbott and Costello Meet Jerry Seinfeld
Character:Self (archive footage)
Release Date:24/11/1994

How the Grinch Stole Christmas! Special Edition
Character:(voice - archive footage)
Release Date:19/11/1994

Dracula: A Cinematic Scrapbook
Character:Doctor Gustav Niemann (archive footage)
Release Date:01/01/1991

Frankenstein: A Cinematic Scrapbook
Character:The Monster / Gustav Niemann / Dr. Jekyll / Mr. Hyde / etc.
Release Date:01/01/1991

Myrna Loy: So Nice to Come Home To
Character:(archive footage)
Release Date:04/06/1990

Abbott and Costello in the Movies
Character:Archival
Release Date:01/01/1990

Transylvania Twist
Character:Man in Room (archive footage)
Release Date:01/10/1989

Hollywood Scandals and Tragedies
Character:
Release Date:19/09/1988

Creepy Classics
Character:Dr. Scarabus - (archive footage)
Release Date:01/10/1987

Going Hollywood: The '30s
Character:(archive footage)
Release Date:01/01/1984

The Horror of It All
Character:Frankenstein / Cabman John Gray (archive footage)
Release Date:23/02/1983

Oops, Those Hollywood Bloopers!
Character:Self (archive footage)
Release Date:01/01/1982

Monsters on the March (and a Pair of Marvels!)
Character:
Release Date:01/01/1980

The Horror Show
Character:(archive footage)
Release Date:06/02/1979

Brother, Can You Spare a Dime?
Character:Self (archive footage)
Release Date:06/08/1975

Madhouse
Character:(archive footage)
Release Date:28/03/1974

The Horror Hall of Fame: A Monster Salute
Character:Self (archive footage)
Release Date:20/02/1974

Alien Terror
Character:Prof. John Mayer
Release Date:01/04/1971

Isle of the Snake People
Character:Carl van Molder / Damballah
Release Date:01/03/1971

Hatchet for the Honeymoon
Character:Gorca (archive footage)
Release Date:02/06/1970

Curse of the Crimson Altar
Character:Professor John Marsh
Release Date:01/12/1968

Targets
Character:Byron Orlok
Release Date:13/08/1968

Fear Chamber
Character:Dr. Carl Mandel
Release Date:01/05/1968

Macabre Serenade
Character:Matthias Morteval
Release Date:01/05/1968

Cauldron of Blood
Character:Franz Badulescu
Release Date:10/02/1968

The Movie Orgy
Character:Self (archive footage)
Release Date:01/01/1968

The Sorcerers
Character:Prof. Marcus Monserrat
Release Date:25/06/1967

Mad Monster Party?
Character:Baron Boris von Frankenstein (voice)
Release Date:08/03/1967

The Venetian Affair
Character:Dr. Pierre Vaugiroud
Release Date:18/01/1967

How the Grinch Stole Christmas!
Character:Narrator / The Grinch (voice)
Release Date:18/12/1966

The Daydreamer
Character:The Rat (voice)
Release Date:01/06/1966

The Ghost in the Invisible Bikini
Character:The Corpse
Release Date:06/04/1966

Doom of Dracula
Character:The Madman (archive footage)
Release Date:01/01/1966

Die, Monster, Die!
Character:Nahum Witley
Release Date:26/10/1965

Bikini Beach
Character:Art Dealer
Release Date:22/07/1964

Today's Teens
Character:Narrator
Release Date:02/02/1964

The Comedy of Terrors
Character:Amos Hinchley
Release Date:22/01/1964

Horror!!!
Character:Self
Release Date:02/01/1964

A Fool's World
Character:Narrator
Release Date:01/01/1964

Black Sabbath
Character:Gorca (segment "The Wurdalak")
Release Date:17/08/1963

The Terror
Character:Baron Victor Frederick Von Leppe
Release Date:17/06/1963

Corridors of Blood
Character:Dr. Thomas Bolton
Release Date:05/06/1963

The Raven
Character:Dr. Scarabus
Release Date:23/01/1963

Lizard's Leg and Owlet's Wing
Character:
Release Date:26/10/1962

Little Lost Robot
Character:Host
Release Date:07/07/1962

The Incredible Doktor Markesan
Character:Dr. Konrad Markesan
Release Date:25/02/1962

Arsenic & Old Lace
Character:Jonathan Brewster
Release Date:05/02/1962

The Storm
Character:
Release Date:21/01/1962

The Grim Reaper
Character:Self
Release Date:13/06/1961

Days of Thrills and Laughter
Character:Self (archive footage)
Release Date:21/03/1961

The Fatal Impulse
Character:Self
Release Date:29/11/1960

Heart of Darkness
Character:Mr. Kurtz
Release Date:06/11/1958

Frankenstein 1970
Character:Baron Viktor von Frankenstein
Release Date:20/07/1958

Grip of the Strangler
Character:James Rankin
Release Date:11/05/1958

Jack the Ripper
Character:Host / Capt. John Elwood / Jonas Atterbury / Dr. Francis Mason
Release Date:08/03/1958

Destination Nightmare
Character:Host / Ira Perry / Pete Wade Sr. / Professor Charles Goncourt / Morgan Debs
Release Date:08/03/1958

The Juggler of Our Lady
Character:Narrator (voice)
Release Date:04/12/1957

The Lark
Character:Bishop Cauchon
Release Date:10/02/1957

Voodoo Island
Character:Phillip Knight
Release Date:01/02/1957

Rendezvous in Black
Character:Ward Allen
Release Date:25/10/1956

A Connecticut Yankee
Character:King Arthur
Release Date:12/03/1955

Sting of Death
Character:Mr. Mycroft
Release Date:12/02/1955

Sabaka
Character:General Pollegar
Release Date:02/02/1955

The Island Monster
Character:Don Gaetano
Release Date:02/01/1954

Abbott and Costello Meet Dr. Jekyll and Mr. Hyde
Character:Dr. Henry Jekyll / Mr. Hyde
Release Date:01/08/1953

Colonel March Investigates
Character:Colonel March
Release Date:01/07/1953

The Black Castle
Character:Dr. Meissen
Release Date:31/10/1952

The Strange Door
Character:Voltan
Release Date:31/10/1951

Bud Abbott and Lou Costello Meet the Killer, Boris Karloff
Character:Swami Talpur
Release Date:26/05/1949

The Emperor's Nightingale
Character:Narrator (English version)
Release Date:15/04/1949

Tap Roots
Character:Tishomingo
Release Date:25/08/1948

Unconquered
Character:Guyasuta, Chief of the Senecas
Release Date:10/10/1947

Dick Tracy Meets Gruesome
Character:Gruesome
Release Date:26/09/1947

The Secret Life of Walter Mitty
Character:Dr Hugo Hollingshead
Release Date:01/09/1947

Lured
Character:Charles van Druten
Release Date:28/08/1947

Bedlam
Character:George Sims
Release Date:10/05/1946

Isle of the Dead
Character:Gen. Nikolas Pherides
Release Date:07/09/1945

The Body Snatcher
Character:John Gray
Release Date:25/05/1945

The Mummy's Curse
Character:Kharis in Flashback (archive footage / uncredited)
Release Date:22/12/1944

House of Frankenstein
Character:Dr. Gustav Niemann
Release Date:15/12/1944

The Climax
Character:Dr. Friedrich Hohner
Release Date:20/10/1944

The Boogie Man Will Get You
Character:Prof. Nathaniel Billings
Release Date:22/10/1942

Hedda Hopper’s Hollywood No. 6
Character:Himself
Release Date:05/10/1942

The Devil Commands
Character:Dr. Julian Blair
Release Date:15/08/1941

Information Please: Series 2, No. 12
Character:Self
Release Date:11/07/1941

You'll Find Out
Character:Judge Spencer Mainwaring
Release Date:22/11/1940

The Ape
Character:Dr. Bernard Adrian
Release Date:30/09/1940

The Mummy's Hand
Character:Kharis (archive footage / uncredited)
Release Date:20/09/1940

Before I Hang
Character:Dr. John Garth
Release Date:17/09/1940

Doomed to Die
Character:James Lee Wong
Release Date:12/08/1940

The Man with Nine Lives
Character:Dr. Leon Kravaal
Release Date:18/04/1940

Black Friday
Character:Dr. Ernest Sovac
Release Date:12/04/1940

The Fatal Hour
Character:James Lee Wong
Release Date:15/01/1940

Tower of London
Character:Mord
Release Date:17/11/1939

British Intelligence
Character:Valdar
Release Date:10/11/1939

The Man They Could Not Hang
Character:Dr. Henryk Savaard
Release Date:17/08/1939

Mr. Wong in Chinatown
Character:Mr. James Lee Wong
Release Date:01/08/1939

The Mystery of Mr. Wong
Character:James Lee Wong
Release Date:08/03/1939

Son of Frankenstein
Character:The Monster
Release Date:13/01/1939

Devil's Island
Character:Dr. Charles Gaudet
Release Date:07/01/1939

Mr. Wong, Detective
Character:James Lee Wong
Release Date:05/10/1938

The Invisible Menace
Character:Jevries
Release Date:11/01/1938

Breakdowns of 1937
Character:Self
Release Date:31/12/1937

West of Shanghai
Character:"General" Wu Yen Fang
Release Date:30/10/1937

Night Key
Character:David Mallory
Release Date:18/04/1937

Cinema Circus
Character:Himself
Release Date:27/01/1937

Charlie Chan at the Opera
Character:Gravelle
Release Date:04/12/1936

The Man Who Changed His Mind
Character:Dr. Laurence
Release Date:11/09/1936

Juggernaut
Character:Dr. Victor Sartorius
Release Date:08/09/1936

The Walking Dead
Character:John Ellman
Release Date:29/02/1936

The Invisible Ray
Character:Dr. Janos Rukh
Release Date:20/01/1936

The Black Room
Character:Baron Gregor de Berghman / Anton de Berghman
Release Date:15/07/1935

The Raven
Character:Edmond Bateman
Release Date:08/07/1935

Hollywood Hobbies
Character:Himself
Release Date:05/07/1935

Bride of Frankenstein
Character:The Monster
Release Date:20/04/1935

Gift of Gab
Character:Himself
Release Date:01/09/1934

The Black Cat
Character:Hjalmar Poelzig
Release Date:07/05/1934

The House of Rothschild
Character:Count Ledrantz
Release Date:07/04/1934

The Lost Patrol
Character:Sanders
Release Date:16/02/1934

Screen Snapshots No. 11
Character:Himself
Release Date:01/01/1934

The Ghoul
Character:Prof. Morlant
Release Date:01/08/1933

The Mummy
Character:Imhotep / Ardath Bey
Release Date:22/12/1932

Boo
Character:Frankenstein's Monster (edited from "Frankenstein")
Release Date:01/12/1932

The Mask of Fu Manchu
Character:Dr. Fu Manchu
Release Date:04/11/1932

The Old Dark House
Character:Morgan
Release Date:20/10/1932

Skyscraper Souls
Character:Man Approaching Ticket Counter
Release Date:16/07/1932

Night World
Character:'Happy' MacDonald
Release Date:04/05/1932

Scarface
Character:Gaffney
Release Date:09/04/1932

The Miracle Man
Character:Nikko
Release Date:01/04/1932

The Cohens and Kellys in Hollywood
Character:Boris Karloff
Release Date:27/03/1932

Behind the Mask
Character:Jim Henderson
Release Date:25/02/1932

Business and Pleasure
Character:Sheik Ali-Ben Joseph
Release Date:24/02/1932

Frankenstein
Character:The Monster
Release Date:21/11/1931

The Guilty Generation
Character:Tony Ricca
Release Date:19/11/1931

The Yellow Ticket
Character:Drunken Orderly
Release Date:30/10/1931

The Mad Genius
Character:Fedor's Father (uncredited)
Release Date:30/09/1931

Five Star Final
Character:T. Vernon Isopod
Release Date:26/09/1931

Graft
Character:Terry
Release Date:21/09/1931

I Like Your Nerve
Character:Luigi - Pacheco's Butler
Release Date:12/09/1931

The Public Defender
Character:The Professor
Release Date:01/08/1931

Smart Money
Character:Sport Williams
Release Date:11/06/1931

Young Donovan's Kid
Character:Cokey Joe
Release Date:06/06/1931

The Vanishing Legion
Character:The Voice (voice)
Release Date:01/06/1931

Cracked Nuts
Character:Boris - First Revolutionary
Release Date:18/04/1931

King of the Wild
Character:Mustapha
Release Date:01/03/1931

Tonight or Never
Character:Waiter
Release Date:04/01/1931

The Criminal Code
Character:Ned Galloway
Release Date:03/01/1931

The Utah Kid
Character:Henchman Baxter
Release Date:27/10/1930

The Sea Bat
Character:Corsican
Release Date:05/07/1930

The Bad One
Character:Monsieur Gaston
Release Date:03/05/1930

The Unholy Night
Character:Abdul Mohammed Bey - the Hindu Lawyer (uncredited)
Release Date:13/09/1929

The King of the Kongo
Character:Scarface Macklin
Release Date:29/08/1929

Behind That Curtain
Character:Beetham's Manservent
Release Date:30/06/1929

The Phantom of the North
Character:Jules Gregg
Release Date:27/05/1929

Anne Against the World
Character:
Release Date:01/05/1929

Two Sisters
Character:Cecil
Release Date:23/03/1929

The Devil's Chaplain
Character:Boris
Release Date:02/03/1929

The Fatal Warning
Character:Mullins
Release Date:15/02/1929

Burning the Wind
Character:Pug Doran
Release Date:10/02/1929

The Little Wild Girl
Character:Maurice Kent
Release Date:01/08/1928

Vultures of the Sea
Character:Grouchy
Release Date:01/03/1928

The Vanishing Rider
Character:The Villain
Release Date:16/01/1928

Sharp Shooters
Character:Cafe Proprietor (uncredited)
Release Date:15/01/1928

The Love Mart
Character:Fleming
Release Date:18/12/1927

Two Arabian Knights
Character:Purser
Release Date:23/09/1927

Soft Cushions
Character:The Chief Conspirator
Release Date:27/08/1927

The Phantom Buster
Character:Ramon
Release Date:13/08/1927

The Meddlin' Stranger
Character:Al Meggs
Release Date:12/06/1927

Tarzan and the Golden Lion
Character:Owaza
Release Date:20/03/1927

The Princess from Hoboken
Character:Pavel
Release Date:01/03/1927

Let It Rain
Character:Crook
Release Date:12/02/1927

Old Ironsides
Character:Saracen Guard (uncredited)
Release Date:06/12/1926

Flaming Fury
Character:Gaspard
Release Date:05/12/1926

The Nickel-Hopper
Character:Dance Hall Masher
Release Date:04/12/1926

The Eagle of the Sea
Character:Pirate (uncredited)
Release Date:17/10/1926

Flames
Character:Blackie Blanchette
Release Date:15/09/1926

The Golden Web
Character:Dave Sinclair
Release Date:01/09/1926

The Bells
Character:The Mesmerist
Release Date:29/07/1926

Her Honor, the Governor
Character:Snipe Collins
Release Date:19/07/1926

The Man in the Saddle
Character:Robber (uncredited)
Release Date:11/07/1926

The Greater Glory
Character:Scissors Grinder
Release Date:02/05/1926

Without Mercy
Character:Madame Gordon's 2nd Henchman (uncredited)
Release Date:04/10/1925

Parisian Nights
Character:Pierre
Release Date:27/09/1925

Never the Twain Shall Meet
Character:
Release Date:13/09/1925

Perils of the Wild
Character:
Release Date:27/08/1925

Lady Robinhood
Character:Cabraza
Release Date:26/07/1925

The Prairie Wife
Character:Diego
Release Date:23/02/1925

Forbidden Cargo
Character:Pietro Castillano
Release Date:22/02/1925

Dynamite Dan
Character:Tony Garcia
Release Date:02/10/1924

Riders of the Plains
Character:
Release Date:15/09/1924

The Hellion
Character:The Outlaw
Release Date:15/07/1924

The White Panther
Character:Shere Ali's Aide (as Karloff Boris)
Release Date:22/01/1924

The Prisoner
Character:Prince Kapolski
Release Date:18/03/1923

Omar the Tentmaker
Character:Imam Mowaffak
Release Date:22/12/1922

The Altar Stairs
Character:Hugo
Release Date:04/12/1922

The Woman Conquers
Character:Raoul Maris
Release Date:01/12/1922

The Man from Downing Street
Character:Maharajah Jehan
Release Date:02/04/1922

The Infidel
Character:The Nabob
Release Date:02/04/1922

Nan of the North
Character:Undetermined Role (uncredited)
Release Date:01/03/1922

The Cave Girl
Character:Baptiste
Release Date:26/12/1921

Cheated Hearts
Character:Nei Hamid
Release Date:12/12/1921

Without Benefit of Clergy
Character:Ahmed Khan
Release Date:19/06/1921

The Hope Diamond Mystery
Character:Priest of Kama-Sita / Dakar
Release Date:19/02/1921

The Last of the Mohicans
Character:Indian (uncredited)
Release Date:21/11/1920

The Courage of Marge O'Doone
Character:Tavish
Release Date:30/05/1920

The Woman and the Puppet
Character:(uncredited)
Release Date:04/04/1920

The Deadlier Sex
Character:Jules Borney
Release Date:28/03/1920

The Prince and Betty
Character:Undetermined Role
Release Date:21/12/1919

His Majesty, the American
Character:Henchman in cloth cap
Release Date:01/09/1919

The Lightning Raider
Character:
Release Date:02/01/1919

The Name of the Game
Character:Mikhail Orlov

The Girl from U.N.C.L.E.
Character:Mother Muffin

The Wild Wild West
Character:Mr. Singh

Shindig!
Character:Self - Guest Host / Singer

Out of This World
Character:Host

Route 66
Character:

Thriller
Character:Clayton Mace

Thriller
Character:Self - Host

Thriller
Character:Pop Jenkins / Col. Jackson Beauregard Finchess

Thriller
Character:Dr. Thorne

Thriller
Character:Doktor Konrad Markesan

Thriller
Character:Dr. Albert Farnham

Shirley Temple's Storybook
Character:Narrator (voice) / Father Knickerbocker

The Veil
Character:

Suspicion
Character:Judge Winthrop Gelsey

DuPont Show of the Month
Character:

The Lux Show
Character:Self

The Dinah Shore Chevy Show
Character:Self

The Rosemary Clooney Show
Character:Self

Telephone Time
Character:

Tony Awards
Character:Self - Nominee

Colonel March of Scotland Yard
Character:Colonel March Of Scotland Yard

This Is Your Life
Character:Self

Climax!
Character:Dr. Philip Nestri

Climax!
Character:Vicar Tellworth

The George Gobel Show
Character:Self

The United States Steel Hour
Character:George Redford

General Electric Theater
Character:Mr. Blue Ocean

General Electric Theater
Character:Henry E. Church

Hallmark Hall of Fame
Character:Cauchon

Hallmark Hall of Fame
Character:Jonathan Brewster

Schlitz Playhouse of Stars
Character:Charles Brandon

The Red Skelton Show
Character:Professor Townsend (Spy)

Tales of Tomorrow
Character:

Down You Go
Character:Self

Lux Video Theatre
Character:Sir Arthur Strangeways

Lux Video Theatre
Character:Montgomery Royle

Lux Video Theatre
Character:Larkin

What's My Line?
Character:Self

Robert Montgomery Presents
Character:Bennett Kimball

Robert Montgomery Presents
Character:

Starring Boris Karloff
Character:

Lights Out
Character:

Suspense
Character:Toff

Suspense
Character:

Suspense
Character:Bronson

Suspense
Character:Rasputin

Studio One
Character:Skaggs

Studio One
Character:Professor Koernig

Studio One
Character:King Arthur