
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.

The Monster
Bride of Frankenstein

Gaffney
Scarface

Dr. Henry Jekyll / Mr. Hyde
Abbott and Costello Meet Dr. Jekyll and Mr. Hyde

The Monster
Frankenstein

The Monster
Son of Frankenstein

Dr. Gustav Niemann
House of Frankenstein

Baron Viktor von Frankenstein
Frankenstein 1970

Dr. Fu Manchu
The Mask of Fu Manchu

Self (archive footage)
The Movie Orgy

Self
Information Please: Series 2, No. 12

Charles van Druten
Lured

Dr. Julian Blair
The Devil Commands

Dr. Charles Gaudet
Devil's Island

Prof. Nathaniel Billings
The Boogie Man Will Get You

Dr. Meissen
The Black Castle

John Gray
The Body Snatcher

Gen. Nikolas Pherides
Isle of the Dead

Dr. Laurence
The Man Who Changed His Mind

Dr. Thomas Bolton
Corridors of Blood

Dr. Victor Sartorius
Juggernaut

Tishomingo
Tap Roots

James Lee Wong
Doomed to Die

Self (archive footage)
He Who Made Monsters: The Life and Art of Jack Pierce

James Lee Wong
Mr. Wong, Detective

George Sims
Bedlam

Hjalmar Poelzig
The Black Cat

Morgan
The Old Dark House

Baron Victor Frederick Von Leppe
The Terror

Shere Ali's Aide (as Karloff Boris)
The White Panther

The Outlaw
The Hellion

The Lightning Raider

Riders of the Plains

Undetermined Role
The Prince and Betty

Pietro Castillano
Forbidden Cargo

Perils of the Wild

Cabraza
Lady Robinhood

Tavish
The Courage of Marge O'Doone

Never the Twain Shall Meet

Madame Gordon's 2nd Henchman (uncredited)
Without Mercy

Nei Hamid
Cheated Hearts

Dave Sinclair
The Golden Web

Blackie Blanchette
Flames

Gaspard
Flaming Fury

Crook
Let It Rain

Pavel
The Princess from Hoboken

Al Meggs
The Meddlin' Stranger

The Chief Conspirator
Soft Cushions

The Villain
The Vanishing Rider

Cafe Proprietor (uncredited)
Sharp Shooters

Grouchy
Vultures of the Sea

Dr. Leon Kravaal
The Man with Nine Lives

Pug Doran
Burning the Wind

Dr. John Garth
Before I Hang

Dr. Henryk Savaard
The Man They Could Not Hang

Maurice Kent
The Little Wild Girl

Baron Gregor de Berghman / Anton de Berghman
The Black Room

Boris
The Devil's Chaplain

Cecil
Two Sisters

Mullins
The Fatal Warning

Monsieur Gaston
The Bad One

Abdul Mohammed Bey - the Hindu Lawyer (uncredited)
The Unholy Night

Sheik Ali-Ben Joseph
Business and Pleasure

Anne Against the World

Narrator (English version)
Císařův slavík

John Ellman
The Walking Dead

Swami Talpur
Bud Abbott and Lou Costello Meet the Killer, Boris Karloff

Monster Movie Trivia Quiz

Narrator / The Grinch (voice)
How the Grinch Stole Christmas!

Undetermined Role (uncredited)
Nan of the North

Maharajah Jehan
The Man from Downing Street

The Nabob
The Infidel

Imam Mowaffak
Omar the Tentmaker

Raoul Maris
The Woman Conquers

Hugo
The Altar Stairs

Prince Kapolski
The Prisoner

(archive footage)
The Horror Show

Dr. Janos Rukh
The Invisible Ray

Gorca (segment "The Wurdalak")
I tre volti della paura

Prof. Morlant
The Ghoul

Mustapha
King of the Wild

David Mallory
Night Key

Gravelle
Charlie Chan at the Opera

Professor John Marsh
Curse of the Crimson Altar

Dr. Hugo Hollingshead
The Secret Life of Walter Mitty

Jim Henderson
Behind the Mask

Mord
Tower of London

(archive footage)
Heroes of Horror

Dr. Ernest Sovac
Black Friday

Dr. Scarabus
The Raven

(archive footage)
Madhouse

Nahum Witley
Die, Monster, Die!

Amos Hinchley
The Comedy of Terrors

Prof. John Mayer
Invasión Siniestra

T. Vernon Isopod
Five Star Final

Ned Galloway
The Criminal Code

Dr. Bernard Adrian
The Ape

Imhotep / Ardath Bey
The Mummy

Kharis (archive footage / uncredited)
The Mummy's Hand

Self (archive footage)
The Horror Hall of Fame: A Monster Salute

Phillip Knight
Voodoo Island

Kharis in Flashback (archive footage / uncredited)
The Mummy's Curse

Don Gaetano
Il mostro dell'isola

Edmond Bateman
The Raven

Beetham's Manservent
Behind That Curtain

Sanders
The Lost Patrol

Baron Boris von Frankenstein (voice)
Mad Monster Party?

Dr. Friedrich Hohner
The Climax

Voltan
The Strange Door

Sport Williams
Smart Money

Dr. Carl Mandel
Fear Chamber

Matthias Morteval
Serenata Macabra

Carl van Molder / Damballah
La muerte viviente

Byron Orlok
Targets

Judge Spencer Mainwaring
You'll Find Out

Valdar
British Intelligence

Gruesome
Dick Tracy Meets Gruesome

Guyasuta, Chief of the Senecas
Unconquered

Self (archive footage)
Boris Karloff: The Man Behind the Monster

Prof. Marcus Monserrat
The Sorcerers

Dr. Scarabus - (archive footage)
Creepy Classics

Bishop Cauchon
The Lark

Self
The American Nightmare

Count Ledrantz
The House of Rothschild

James Rankin
Grip of the Strangler

Mr. James Lee Wong
Mr. Wong in Chinatown

James Lee Wong
The Mystery of Mr. Wong

James Lee Wong
The Fatal Hour

The Corpse
The Ghost in the Invisible Bikini

Franz Badulescu
El coleccionista de cadáveres

Dr. Pierre Vaugiroud
The Venetian Affair

Waiter
Tonight or Never

Mr. Mycroft
Sting of Death

Owaza
Tarzan and the Golden Lion

Narrator
Mondo Balordo

Himself
Cinema Circus

Fedor's Father (uncredited)
The Mad Genius

The Voice (voice)
The Vanishing Legion

Doctor Gustav Niemann (archive footage)
Dracula: A Cinematic Scrapbook

The Monster (archive footage)
The Many Faces of Dracula

The Monster / Gustav Niemann / Dr. Jekyll / Mr. Hyde / etc.
Frankenstein: A Cinematic Scrapbook

Himself
Gift of Gab

The Professor
The Public Defender

Terry
Graft

Dance Hall Masher
The Nickel-Hopper

The Mesmerist
The Bells

Self (archive footage)
Oops, Those Hollywood Bloopers!

Corsican
The Sea Bat

Jevries
The Invisible Menace

"General" Wu Yen Fang
West of Shanghai

Tony Ricca
The Guilty Generation

Self (archive footage)
A Masque of Madness (Notes on Film 06-B, Monologue 02)

Tony Garcia
Dynamite Dan

Various roles (archive footage)
Monster Madness: The Golden Age of the Horror Film

Scarface Macklin
The King of the Kongo

The Rat (voice)
The Daydreamer

Boris - First Revolutionary
Cracked Nuts

'Happy' MacDonald
Night World

Self (archive footage)
Lugosi: The Dark Prince

(archive footage)
Going Hollywood: The '30s

Frankenstein / Cabman John Gray (archive footage)
The Horror of It All

Nikko
The Miracle Man

Self (archive footage)
Classic Movie Bloopers: Uncensored

Purser
Two Arabian Knights

Jules Gregg
The Phantom of the North

Henchman Baxter
The Utah Kid

Indian (uncredited)
The Last of the Mohicans

Archival
Abbott and Costello in the Movies

Pirate (uncredited)
The Eagle of the Sea

Ramon
The Phantom Buster

Narrator (voice)
The Juggler of Our Lady

The Monster (archive footage) (uncredited)
The Last Repair Shop

Self - Interviewee
Boris Karloff: The Rest of the Story

Himself (archive footage)
Le vampire déchu

Saracen Guard (uncredited)
Old Ironsides

Jules Borney
The Deadlier Sex

Drunken Orderly
The Yellow Ticket

Self (archive footage)
Days of Thrills and Laughter

Self (archive footage)
Hollywood in the Atomic Age: Monsters! Martians! Mad Scientists!

Colonel March
Colonel March Investigates

Man Approaching Ticket Counter
Skyscraper Souls

Monsters on the March (and a Pair of Marvels!)

Self
The Fatal Impulse

Luigi - Pacheco's Butler
I Like Your Nerve

Host / Capt. John Elwood / Jonas Atterbury / Dr. Francis Mason
Jack the Ripper

Host / Ira Perry / Pete Wade Sr. / Professor Charles Goncourt / Morgan Debs
Destination Nightmare

Man in Room (archive footage)
Transylvania Twist

Frankenstein's Monster (edited from "Frankenstein")
Boo

Host
Little Lost Robot

King Arthur
A Connecticut Yankee

Baptiste
The Cave Girl

Self (archive footage)
Mummy Dearest: A Horror Tradition Unearthed

Mr. Wong (archive footage)
Terror in the Tropics

Art Dealer
Bikini Beach

Henchman in cloth cap
His Majesty, the American

Self
Breakdowns of 1937

Boris Karloff
The Cohens and Kellys in Hollywood

Self (archive footage)
Brother, Can You Spare a Dime?

(archive footage)
The Mesmerist

Himself
Hedda Hopper’s Hollywood No. 6

Self (archive footage)
Karloff: The Gentle Monster

Self (archive footage)
The 'Frankenstein' Files: How Hollywood Made a Monster

Cokey Joe
Young Donovan's Kid

(archive footage)
Myrna Loy: So Nice to Come Home To

Fleming
The Love Mart

Self (archive footage)
The Universal Story

Cabman John Gray (archive footage)
Ian Rankin Investigates: Dr. Jekyll & Mr. Hyde

Priest of Kama-Sita / Dakar
The Hope Diamond Mystery

General Pollegar
Sabaka

Scissors Grinder
The Greater Glory

Narrator
Today's Teens

Jonathan Brewster
Arsenic & Old Lace

Diego
The Prairie Wife

Ahmed Khan
Without Benefit of Clergy

Snipe Collins
Her Honor, the Governor

Self (archive footage)
Jack Pierce: The Man Who Made the Monsters

The Madman (archive footage)
Doom of Dracula

Himself
Hollywood Hobbies

Himself
Screen Snapshots No. 11

Pierre
Parisian Nights

Mr. Kurtz
Heart of Darkness

Robber (uncredited)
The Man in the Saddle

Dr. Konrad Markesan
The Incredible Doktor Markesan

Gorca (archive footage)
Il rosso segno della follia

The Complete Bob Wilkins Creature Features

The Storm

Self (archive footage)
Famous Monster: Forrest J Ackerman

Self (archive footage)
Monster by Moonlight! The Immortal Saga of 'The Wolf Man'

(archive footage)
Universal Horror

Self
Horror!!!

(voice - archive footage)
How the Grinch Stole Christmas! Special Edition

Self (archive footage)
Abbott and Costello Meet Jerry Seinfeld

Frankenstein (archivo de imagen)
The Dark Universe

La Momia (archivo de imagen)
The Dark Universe

Ward Allen
Rendezvous in Black

Hollywood Scandals and Tragedies

Lizard's Leg and Owlet's Wing

Self
The Grim Reaper

(uncredited)
The Woman and the Puppet

Self - (archive footage)
Legacy of Screams: The Evolution of Horror Movies
Known For
Acting
Known Credits
239
Gender
Male
Birthday
1887-11-23
Place of Birth
Camberwell, London, England, UK
Also Known As
William Henry Pratt