John St. Polis

Crossroads

as Professor (uncredited)

Haunted House

as Simkins

On the Spot

as Doc Hunter

Rocky Mountain Rangers

as Joseph Manners

Abe Lincoln in Illinois

as Minor Role (uncredited)

They Shall Have Music

as Davis

Boys' Reformatory

as Superintendent Keene

Mr. Wong, Detective

as Carl Roemer

The Mysterious Rider

as Townsman

Phantom Ranger

as Pat Doyle

International Crime

as Roger Morton

Saleslady

as Crane

The Shadow Strikes

as Caleb Delthern

Jungle Menace

as Chandler Elliott

Paradise Isle

as Coxon

Borderland

as Doctor

Below the Deadline

as Mr. Abrams

Three on the Trail

as Sheriff Sam Corwin

Call of the Prairie

as Jim

The Dark Hour

as Dr. Munro

A Night at the Opera

as Opera Conductor (uncredited)

The Lady in Scarlet

as Jerome T. Shelby

Death from a Distance

as Prof. Trowbridge

The President Vanishes

as Attorney General Davis (uncredited)

Guilty Parents

as Defense attorney

Notorious But Nice

as John J. Martin

Cocktail Hour

as French Police Investigator (uncredited)

King of the Arena

as Governor

The World Gone Mad

as Grover Cromwell

Terror Trail

as Colonel Charles Ormsby

The Match King

as Banker (uncredited)

Call Her Savage

as Doctor Consoling Nasa (Uncredited)

The Gambling Sex

as John Tracy

If I Had a Million

as Glidden Associate (uncredited)

False Faces

as Dr. McDonald

The Crusader

as Robert Henley

Symphony of Six Million

as Dr. Schifflen

Lena Rivers

as John Nichols

Alias the Doctor

as Dr. Niergardt

Heartbreak

as U.S. Ambassador

The Yellow Ticket

as Passport Official at Airport

The Gay Diplomat

as General

Their Mad Moment

as Hotel Manager

Transgression

as Serafin, Arturo's Butler

Men of the Sky

as Madeleine's Father

Doctors' Wives

as Dr. Mark Wyndram

Beau Ideal

as Judge Advocate (as John M. St. Polis)

The Criminal Code

as Dr. Rinewulf

Captain Thunder

as Pedro

Kismet

as The Imam Mahmud

A Devil with Women

as Don Diego

The Bad One

as Judge

The Three Sisters

as Judge

Guilty?

as Polk

In the Next Room

as Philip Vantine

The Melody Man

as Von Kemper

Party Girl

as John Rountree

Fast Life

as Andrew Stratton

Coquette

as Dr. John M. Besant

Why Be Good?

as Pa Kelly

Marriage by Contract

as Father

The Power of Silence

as Defense Attorney

A Woman's Way

as Mouvet

The Unknown

as Surgeon (uncredited)

Too Many Crooks

as Erastus Mason

The Lily

as Comte de Maigny

The Greater Glory

as Prof. Leopold Eberhardt (as John Sainpolis)

The Far Cry

as Count Filippo Sturani

Paint and Powder

as Mark Kelsey (as John Sainpolis)

My Lady's Lips

as Inspector

The Phantom of the Opera

as Comte Philip de Chagny

The Dixie Handicap

as Dexter

Folly of Vanity

as Ridgeway (modern sequence)

The Rose of Paris

as André du Vallois

In Every Woman's Life

as Dr. Philip Logan

The Alaskan

as Rossland (as John Sainpolis)

Those Who Dance

as Monahan

Mademoiselle Midnight

as Colonel de Gontran (Prologue)

Three Weeks

as The King

Held to Answer

as Hiram Burbeck

Woman-Proof

as Milo Bleech (as John Sainpolis)

A Prince of a King

as Mario

The Social Code

as Defense Attorney

The Untameable

as Dr. Copin

Three Wise Fools

as John Crawshay

Souls for Sale

as Self - Celebrity Actor in Commissary

The Hero

as Andrew Lane

Shadows

as Nate Snow

Cappy Ricks

as Skinner (as John Sainpolis)

The Four Horsemen of the Apocalypse

as Etienne Laurier

The Great Lover

as Jean Paurel

Old Dad

as Jeffrey Bretton

Stake Uncle Sam to Play Your Hand

as Kaiser

Laughing Bill Hyde

as Black Jack Burg

All Woman

as Sam Tupper

The Mark of Cain

as Judge Hoyt

The Public Defender

as David Moulton

The Love That Lives

as Harvey Brooks

The Mystic Hour

as Clavering

Sleeping Fires

as Edwin Bryce

Sapho

as Dejoie

The Fortunes of Fifi

as Duvernet

The World Against Him

as Dr. Hamilton Welsh

The Social Highwayman

as Hanby

The Yellow Passport

as Fedia

The Salamander

as Albert Sassoon

Bondwomen

as Dr. Hugh Ellis

Wormwood

Joseph and His Coat of Many Colors

Soldiers of Fortune

as Pres. Alvarez