John Cossar (2 Januarie 1858 – 28 April 1935) was 'n Engelse akteur. Hy was bekend vir sy rolle in die rolprente Two-Bit Seats (1917), Fools for Luck (1917), The Dream Doll (1917), en The House Without a Key (1926).
- 1914: One Wonderful Night
- 1915: The Alster Case
- 1915: The Blindness of Virtue
- 1915: The Crimson Wing
- 1915: The Sky Hunters
- 1916: The Prince of Graustark
- 1916: The Strange Case of Mary Page
- 1916: The Chaperon
- 1916: The Little Shepherd of Bargain Row
- 1917: Two-Bit Seats
- 1917: Fools for Luck
- 1917: The Dream Doll
- 1917: The Fibbers
- 1917: Gift o' Gab
- 1917: On Trial
- 1917: Satan's Private Door
- 1917: Pants
- 1917: The Trufflers
- 1918: Beans
- 1918: Her Country First
- 1919: Common Clay
- 1919: Home
- 1919: The Long Arm of Mannister
- 1919: Love Is Love
- 1919: Vagabond Luck
- 1919: When Fate Decides
- 1919: The Highest Trump
- 1921: Hearts and Masks
- 1922: When Husbands Deceive
- 1924: Great Diamond Mystery
- 1926: The House Without a Key
- 1927: Web of Fate
- 1927: Woman's Law
- 1929: The Fire Detective
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