Filmography
| Title | Year | Role | Notes |
|---|---|---|---|
| Brewster's Millions | 1914 | Jonas Sedgwick | |
| The Call of the North | 1914 | McTavish | |
| The Virginian | 1914 | Uncle Hughey | |
| The Making of Bobby Burnit | 1914 | Silas Trimmer | aka Bobby Burnit |
| What's His Name | 1914 | Uncle Peter | |
| Ready Money | 1914 | Owner of the Skyrocket | |
| Rose of the Rancho | 1914 | Ranch Owner | |
| The Girl of the Golden West | 1915 | Sidney Duck | |
| The Goose Girl | 1915 | Prince Regent of Jugendheit | |
| The Warrens of Virginia | 1915 | General Harding | |
| A Gentleman of Leisure | 1915 | Sir Thomas Blunt | |
| Stolen Goods | 1915 | Mr. North | |
| The Arab | 1915 | Dr. Hilbert | |
| The Secret Orchard | 1915 | Nanette's father | |
| The Scarlet Chastity | 1916 | ||
| Playthings of the Gods | 1916 | ||
| The Evil Women Do | 1916 | Malgat/Papa Ravinet | Billed as "Sydney Dean". The film was also known as The Clique of Gold. |
| Melting Millions | 1917 | Uncle Peter | |
| The Grip of Love | 1917 | ||
| The Field of Honor | 1917 | Poole | Billed as "Sidney Deane". |
| A Doll's House | 1917 | Dr. Rank | |
| The Gray Ghost | 1917 | ||
| The Reed Case | 1917 | John Reed | Billed as "Sydney Dean". |
| Sirens of the Sea | 1917 | Wellington Stanhope | Released as Darlings of the Gods in the United Kingdom. |
| Beloved Jim | 1917 | Lawrence Darcy | |
| The Wife He Bought | 1918 | James Brierson | |
| The Midnight Trail | 1918 | Reverend Robert Moreland | |
| Breakers Ahead | 1918 | Hiram Hawley | |
| No Man's Land | 1918 | ||
| Lure of the Circus | 1918 | Reynolds | Billed as "Sidney Deane". |
| A Man and His Money | 1919 | John Sturgeon | |
| The Crimson Gardenia | 1919 | Papa la Forge | Billed as "Sidney Deane". |
| Male and Female | 1919 | Thomas | |
| The Midlanders | 1920 | Judge Van Hart | |
| Treasure Island | 1920 | Squire Trelawney | |
| The Strange Boarder | 1920 | Dawson | |
| Once a Plumber | 1920 | Fenelon | Billed as "Sidney Deane". |
| The Last of the Mohicans | 1920 | General Webb | |
| Find the Woman | 1922 | Sofford | |
| Missing Millions | 1922 | Donald Gordon | |
| Her Own Story | 1922 | ||
| The Broken Violin | 1923 | Dr. Mason | |
| America | 1924 | Sir Ashley Montague | Released as Love and Sacrifice in the UK. |
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