Sidney Olcott
- Compleanno:
- 09/20/1873
- Luogo di nascita:
- Toronto, Ontario, Canada:
 | Bold Emmett, Ireland's Martyr (1915) Con Daly |
 | All for Old Ireland (1915) |
 | The Railroad Raiders of '62 (1915) Captain Andrews (archive footage) (uncredited) |
 | The Eye of the Government (1914) The Detective |
 | For Ireland's Sake (1914) Father Flanagan |
| | Lady Peggy’s Escape (1913) Father O’Donnell |
| | The Shaughraun (1912) Conn - the Shaughraun |
 | Ireland, the Oppressed (1912) Father Falvey |
| | The Mayor from Ireland (1912) |
 | The Kerry Gow (1912) Capt. Sidney Keirnan |
 | From the Manger to the Cross (1912) Blind Man (uncredited) |
| | Vagabonds (1912) Tom |
| | The O'Neill (1912) |
| | The Fishermaid of Ballydavid (1911) A Fisherman / Kathleen's Fiance |
 | The Colleen Bawn (1911) Danny Mann |
 | Railroad Raiders of '62 (1911) Capt. Andrews |
| | The Fiddler’s Requiem (1911) Notary |
| | The Irish Honeymoon (1911) Larry Malone |
 | The Little Spreewald Maiden (1910) Hans - Frieda's Peasant Sweetheart |
 | The Lad from Old Ireland (1910) Terry O'Connor |
 | 2 A.M. in the Subway (1905) Drunk Man |