

The Last Repair Shop(2024)
The Monster (archive footage) (uncredited)

Monster Madness: The Golden Age of the Horror Film(2014)
Various roles (archive footage)

The Complete Bob Wilkins Creature Features(2012)

Bela Lugosi: The Fallen Vampire(2007)
Himself (archive footage)

Ian Rankin Investigates: Dr. Jekyll & Mr. Hyde(2007)
Cabman John Gray (archive footage)

Terror in the Tropics(2006)
Mr. Wong (archive footage)

Monster Movie Trivia Quiz(2004)

The Mesmerist(2003)
(archive footage)
Heroes of Horror(2001)
(archive footage)

The Many Faces of Dracula(2000)
The Monster (archive footage)

Universal Horror(1998)
(archive footage)

How the Grinch Stole Christmas! Special Edition(1994)
(voice - archive footage)

Dracula in the Movies(1992)

Dracula: A Cinematic Scrapbook(1991)
Doctor Gustav Niemann (archive footage)
Frankenstein: A Cinematic Scrapbook(1991)
The Monster / Gustav Niemann / Dr. Jekyll / Mr. Hyde / etc.

Halloween Monster Bash(1991)
Baron Von Leppe (archive footage)

Abbott and Costello in the Movies(1990)
Archival

Myrna Loy: So Nice to Come Home To(1990)
(archive footage)

Transylvania Twist(1989)
Man in Room (archive footage)

Hollywood Scandals and Tragedies(1988)

Creepy Classics(1987)
Dr. Scarabus - (archive footage)

Going Hollywood: The '30s(1984)
(archive footage)

The Horror of It All(1983)
Frankenstein / Cabman John Gray (archive footage)

Monsters on the March (and a Pair of Marvels!)(1980)

The Horror Show(1979)
(archive footage)

Madhouse(1974)
(archive footage)

Alien Terror(1971)
Prof. John Mayer

Isle of the Snake People(1971)
Carl van Molder / Damballah

Hatchet for the Honeymoon(1970)
Gorca (archive footage)

Curse of the Crimson Altar(1968)
Professor John Marsh

Fear Chamber(1968)
Dr. Carl Mandel

Macabre Serenade(1968)
Matthias Morteval

Targets(1968)
Byron Orlok

Cauldron of Blood(1968)
Franz Badulescu

Mad Monster Party?(1967)
Baron Boris von Frankenstein (voice)

The Sorcerers(1967)
Prof. Marcus Monserrat

The Venetian Affair(1967)
Dr. Pierre Vaugiroud

How the Grinch Stole Christmas!(1966)
Narrator / The Grinch (voice)

The Ghost in the Invisible Bikini(1966)
The Corpse

The Daydreamer(1966)
The Rat (voice)

Doom of Dracula(1966)
The Madman (archive footage)

Die, Monster, Die!(1965)
Nahum Witley

The Comedy of Terrors(1964)
Amos Hinchley

A Fool's World(1964)
Narrator

Bikini Beach(1964)
Today's Teens(1964)
Narrator

Corridors of Blood(1963)
Dr. Thomas Bolton

The Terror(1963)
Baron Victor Frederick Von Leppe

Black Sabbath(1963)
Gorca (segment "The Wurdalak")

The Raven(1963)
Dr. Scarabus

Little Lost Robot(1962)
Host

Arsenic & Old Lace(1962)
Jonathan Brewster

The Incredible Doktor Markesan(1962)
Dr. Konrad Markesan

The Storm(1962)

Lizard's Leg and Owlet's Wing(1962)

Who Killed Chung Ling Soo?(1960)
Narrator

Frankenstein 1970(1958)
Baron Viktor von Frankenstein

Grip of the Strangler(1958)
James Rankin
Destination Nightmare(1958)
Host / Ira Perry / Pete Wade Sr. / Professor Charles Goncourt / Morgan Debs
Jack the Ripper(1958)
Host / Capt. John Elwood / Jonas Atterbury / Dr. Francis Mason

Heart of Darkness(1958)
Mr. Kurtz

Voodoo Island(1957)
Phillip Knight

The Lark(1957)
Bishop Cauchon

The Juggler of Our Lady(1957)
Narrator (voice)

Rendezvous in Black(1956)
Ward Allen

Sting of Death(1955)
Mr. Mycroft

A Connecticut Yankee(1955)
King Arthur

Sabaka(1955)
General Pollegar

The Island Monster(1954)
Don Gaetano

Abbott and Costello Meet Dr. Jekyll and Mr. Hyde(1953)
Dr. Henry Jekyll / Mr. Hyde

Colonel March Investigates(1953)
Colonel March

The Black Castle(1952)
Dr. Meissen

The Strange Door(1951)
Voltan

The Emperor's Nightingale(1949)
Narrator (English version)

Bud Abbott and Lou Costello Meet the Killer, Boris Karloff(1949)
Swami Talpur

Tap Roots(1948)
Tishomingo

Lured(1947)
Charles van Druten

The Secret Life of Walter Mitty(1947)
Dr Hugo Hollingshead

Dick Tracy Meets Gruesome(1947)
Gruesome

Unconquered(1947)
Guyasuta, Chief of the Senecas

Bedlam(1946)
George Sims

The Body Snatcher(1945)
John Gray

Isle of the Dead(1945)
Gen. Nikolas Pherides

House of Frankenstein(1944)
Dr. Gustav Niemann

The Mummy's Curse(1944)
Kharis in Flashback (archive footage / uncredited)

The Climax(1944)
Dr. Friedrich Hohner

The Boogie Man Will Get You(1942)
Prof. Nathaniel Billings

Hedda Hopper’s Hollywood No. 6(1942)
Himself

The Devil Commands(1941)
Dr. Julian Blair

Doomed to Die(1940)
James Lee Wong

Before I Hang(1940)
Dr. John Garth

The Man with Nine Lives(1940)
Dr. Leon Kravaal

Black Friday(1940)
Dr. Ernest Sovac

The Ape(1940)
Dr. Bernard Adrian

The Mummy's Hand(1940)
Kharis (archive footage / uncredited)

You'll Find Out(1940)
Judge Spencer Mainwaring

The Fatal Hour(1940)
James Lee Wong

Son of Frankenstein(1939)
The Monster

Devil's Island(1939)
Dr. Charles Gaudet

The Man They Could Not Hang(1939)
Dr. Henryk Savaard

Tower of London(1939)
Mord

British Intelligence(1939)
Valdar

Mr. Wong in Chinatown(1939)
Mr. James Lee Wong

The Mystery of Mr. Wong(1939)
James Lee Wong

Mr. Wong, Detective(1938)
James Lee Wong

The Invisible Menace(1938)
Jevries

Night Key(1937)
David Mallory
Cinema Circus(1937)
Himself

West of Shanghai(1937)
"General" Wu Yen Fang

Juggernaut(1936)
Dr. Victor Sartorius

The Man Who Changed His Mind(1936)
Dr. Laurence

The Walking Dead(1936)
John Ellman

The Invisible Ray(1936)
Dr. Janos Rukh

Charlie Chan at the Opera(1936)
Gravelle

Bride of Frankenstein(1935)
The Monster

The Black Room(1935)
Baron Gregor de Berghman / Anton de Berghman

The Raven(1935)
Edmond Bateman
Hollywood Hobbies(1935)
Himself

The Black Cat(1934)
Hjalmar Poelzig

The Lost Patrol(1934)
Sanders

The House of Rothschild(1934)
Count Ledrantz

Gift of Gab(1934)
Himself

Screen Snapshots No. 11(1934)
Himself

The Ghoul(1933)
Prof. Morlant

Scarface(1932)
Gaffney

The Mask of Fu Manchu(1932)
Dr. Fu Manchu

The Old Dark House(1932)
Morgan

Business and Pleasure(1932)
Sheik Ali-Ben Joseph

Behind the Mask(1932)
Jim Henderson

The Mummy(1932)
Imhotep / Ardath Bey

Night World(1932)
'Happy' MacDonald

The Miracle Man(1932)
Nikko

Skyscraper Souls(1932)
Man Approaching Ticket Counter

Boo(1932)
Frankenstein's Monster (edited from "Frankenstein")

The Cohens and Kellys in Hollywood(1932)
Boris Karloff

Frankenstein(1931)
The Monster

King of the Wild(1931)
Mustapha

Five Star Final(1931)
T. Vernon Isopod

The Criminal Code(1931)
Ned Galloway

Smart Money(1931)
Sport Williams

Tonight or Never(1931)
Waiter

The Mad Genius(1931)
Fedor's Father (uncredited)

The Vanishing Legion(1931)
The Voice (voice)

The Public Defender(1931)
The Professor

Graft(1931)
Terry

The Guilty Generation(1931)
Tony Ricca

Cracked Nuts(1931)
Boris - First Revolutionary

The Yellow Ticket(1931)
Drunken Orderly

I Like Your Nerve(1931)
Luigi - Pacheco's Butler

Young Donovan's Kid(1931)
Cokey Joe

The Bad One(1930)
Monsieur Gaston

The Sea Bat(1930)
Corsican

The Utah Kid(1930)
Henchman Baxter

Burning the Wind(1929)
Pug Doran

The Fatal Warning(1929)
Mullins

The Devil's Chaplain(1929)
Boris

Two Sisters(1929)
Cecil
Anne Against the World(1929)

The Unholy Night(1929)
Abdul Mohammed Bey - the Hindu Lawyer (uncredited)

Behind That Curtain(1929)
Beetham's Manservent

The King of the Kongo(1929)
Scarface Macklin
The Phantom of the North(1929)
Jules Gregg

Sharp Shooters(1928)
Cafe Proprietor (uncredited)

The Vanishing Rider(1928)
The Villain

Vultures of the Sea(1928)
Grouchy

The Little Wild Girl(1928)
Maurice Kent

Let It Rain(1927)
Crook

The Princess from Hoboken(1927)
Pavel

The Meddlin' Stranger(1927)
Al Meggs

Soft Cushions(1927)
The Chief Conspirator

Tarzan and the Golden Lion(1927)
Owaza

Two Arabian Knights(1927)
Purser

The Phantom Buster(1927)
Ramon

The Love Mart(1927)
Fleming

The Golden Web(1926)
Dave Sinclair

Flames(1926)
Blackie Blanchette

Flaming Fury(1926)
Gaspard

The Bells(1926)
The Mesmerist

The Nickel-Hopper(1926)
Dance Hall Masher

The Eagle of the Sea(1926)
Pirate (uncredited)

Old Ironsides(1926)
Saracen Guard (uncredited)

The Greater Glory(1926)
Scissors Grinder

Her Honor, the Governor(1926)
Snipe Collins

The Man in the Saddle(1926)
Robber (uncredited)

Forbidden Cargo(1925)
Pietro Castillano

Lady Robinhood(1925)
Cabraza

Never the Twain Shall Meet(1925)

Perils of the Wild(1925)

Without Mercy(1925)
Madame Gordon's 2nd Henchman (uncredited)

The Prairie Wife(1925)
Diego

Parisian Nights(1925)
Pierre

The White Panther(1924)
Shere Ali's Aide (as Karloff Boris)

The Hellion(1924)
The Outlaw

Riders of the Plains(1924)

Dynamite Dan(1924)
Tony Garcia

The Prisoner(1923)
Prince Kapolski

Nan of the North(1922)
Undetermined Role (uncredited)

The Man from Downing Street(1922)
Maharajah Jehan

The Infidel(1922)
The Nabob

The Altar Stairs(1922)
Hugo

The Woman Conquers(1922)
Raoul Maris

Omar the Tentmaker(1922)
Imam Mowaffak

Cheated Hearts(1921)
Nei Hamid

The Cave Girl(1921)
Baptiste

The Hope Diamond Mystery(1921)
Priest of Kama-Sita / Dakar

Without Benefit of Clergy(1921)
Ahmed Khan

The Courage of Marge O'Doone(1920)
Tavish

The Last of the Mohicans(1920)
Indian (uncredited)

The Deadlier Sex(1920)
Jules Borney

The Woman and the Puppet(1920)
(uncredited)

The Lightning Raider(1919)

The Prince and Betty(1919)
Undetermined Role

His Majesty, the American(1919)
Henchman in cloth cap