As "Baron de Varville" in Camille (1936), starring Greta Garbo, Robert Taylor and Lionel Barrymore.
As "John Wales" in the mystery The Thirteenth Chair (1937), a remake of the early Tod Browning talkie which featured Bela Lugosi as the detective.
As "Lord Wolfingham" in the Errol Flynn swashbuckler The Sea Hawk (1940), with a fine cast including Claude Rains, Brenda Marshall and Una O'Connor.
Directed by Michael Curtiz.
As "Garbitsch," a parody of Goebbels, assisting "Adenoid Hynkel" (dictator of Tomania), in Charlie Chaplin's satire of Hitler, The Great Dictator (1940).
With Paulette Goddard, Jack Oakie and Billy Gilbert.
As the public prosecutor in A Woman's Face (1941), with Joan Crawford, Conrad Veidt, Melvyn Douglas and George Zucco.
As "Watson King" in the Charlie Chan film Castle in the Desert (1942), with Sidney Toler and Victor Sen Yung.
As "Sir Alfred Lloyd" in Sherlock Holmes and the Voice of Terror (1942), starring Basil Rathbone and Nigel Bruce as Holmes and Dr. Watson,
with Evelyn Ankers and Thomas Gomez.
As "Captain Stafford" in Nightmare (1942), starring Brian Donlevy and Diana Barrymore.
One of the original SHOCK! films syndicated to TV in the late 50's.
As "Frederick Seamon, Enemy Agent Chief" in The Great Impersonation (1942), with Ralph Bellamy and Evelyn Ankers.
As "Scotland Yard man" in Sherlock Holmes and the Secret Weapon (1942), starring Basil Rathbone and Nigel Bruce as Holmes and Dr. Watson,
with Lionel.Atwill as archvillain Professor Moriarty.
As "William Easter" in Sherlock Holmes in Washington (1943), starring Basil Rathbone and Nigel Bruce as Holmes and Dr. Watson,
with Marjorie Lord and George Zucco.
As "Henry Brocklehurst," the cold, cruel master of the orphanage where young Jane grows up in Jane Eyre (1944),
starring Joan Fontaine, Orson Welles, and Peggy Ann Garner.
As "Gilbert Simmons" in The Suspect (1945), starring guilty Charles Laughton.
As "Von Stetten" in Hotel Berlin (1945), with Raymond Massey and Peter Lorre.
As "Dr. Wolfe 'Toddy' MacFarlane," a brilliant surgeon forced to deal with an unscrupulous supplier of medical cadavers in The Body Snatcher (1945),
with Boris Karloff and Bela Lugosi. Directed by Robert Wise, produced by Val Lewton, based on a story by Robert Louis Stevenson. One of the best of Lewton's fine
productions.
As "Professor Moriarty" in The Woman in Green (1945), starring Basil Rathbone and Nigel Bruce as Sherlock Holmes and Dr. Watson,
with Hillary Brooke and Paul Cavanagh.
As the "Bishop of Beauvais" in the star-studded The Story of Mankind (1957), with Ronald Colman as the "Spirit of Man" and Vincent Price
as the Devil, featuring Peter Lorre (Nero), John Carradine, Cedric Hardwicke, the Marx Brothers and many other stars.
Directed by Irwin Allen.
As "Morgana," one of the wealthy industrialists interested in a scientist's experiments with "Power X," a super-powerful explosive capable of blasting a manned rocket
past the Earth's atmosphere on its way to the moon,
in From the Earth to the Moon (1958), period (1868) sci-fi based on Jules Verne's novel,
starring Joseph Cotten, George Sanders and Debra Paget.
As headshrinker "Dr. Emil Zurich" in The Four Skulls of Jonathan Drake (1960).
As "Dr. Zucco" in Voyage to the Bottom of the Sea (1961), directed by Irwin Allen and inspiring the TV series.
Good cast including Walter Pidgeon, Joan Fontaine, Peter Lorre and Barbara Eden..
As "Sheik Ageiba" in Five Weeks in a Balloon (1962), a Jules Verne adventure directed by Irwin Allen, starring
Red Buttons, Barbara Eden, Fabian, Cedric Hardwicke, Peter Lorre and Barbara Luna.
In strong roles in five fine episodes of the often-chilling TV series Thriller hosted by Boris Karloff:
as "Van Prinn" in "The Cheaters" (December 27, 1960),
in "Well of Doom" (February 28, 1961),
as "Count Alexander Cagliostro" in "The Prisoner in the Mirror" (May 23, 1961),
as "Pierre Radin" in the horrifying "The Grim Reaper" (19xx), starring William Shatner, and
as "Vicar John Weatherford" in "God Grante That She Lye Stille" (October 23, 1961).