William Bertram

Directed

1. The Old Maid's Baby (1919) — Director
2. The Sawdust Doll (1919) — Director
3. Ace of Action (1926) — Director
4. Hidden Dangers (1920) — Director
5. Smoking Trails (1924) — Director
6. Dolly Does Her Bit (1918) — Director
7. The Phantom Buster (1927) — Director
8. The Comet's Come-Back (1916) — Director
9. Fangs of Vengeance (1926) — Director
10. Detective K-9 (1926) — Director
11. The Tryout (1919) — Director
12. Hoodoo Ranch (1926) — Director
13. A Daughter of the West (1918) — Director
14. The Golden Trail (1925) — Director
15. A Modern Knight (1916) — Director
16. Wait and See (1915) — Director
17. His Obligation (1915) — Director
18. The Arizona Cat Claw (1919) — Director
19. Gold from Weepah (1927) — Director
20. Neal of the Navy (1915) — Director
21. The Mender (1915) — Director
22. The Little Patriot (1917) — Director
23. Who Is Number One? (1917) — Director
24. The Neglected Wife (1917) — Director
25. The Extra Man and the Milk-Fed Lion (1916) — Director

Also appeared in

1. The Mystery Trooper (1931) — Chief Red Eagle
2. Damaged Goods (1914) — A Quack
3. The Long Chance (1922) — Sam Singer
4. Spurs (1930) — Indian Joe
5. Smoking Trails (1924) — Jack Barton
6. Under Fire (1926)
7. Twisted Triggers (1926) — Jim Regan
8. Jim (1914) — Manservant
9. Fangs of Fate (1925) — Judge Harcourt
10. God's Country and the Man (1931) — Texas Ranger Captain
11. Trails of the Golden West (1931)
12. The Zaca Lake Mystery (1915) — The Sheriff
13. Wife Wanted (1915)
14. The Wishing Stone (1915) — Barbara's Grandfather
15. His Brother's Debt (1915) — Mr. Downs
16. Reformation (1915) — The Minister
17. Ancestry (1915) — Father Time
18. The Truth of Fiction (1915) — Sheriff
19. The Derelict (1915) — Dr. Lane
20. The Decision (1915) — Alexander Du Bois
21. Justified (1915) — Jed Morgan
22. The Swift Shadow (1927) — Joseph Todd, Helen's Father
23. The Ridin' Kid (1931) — Mark Perdue
24. One Summer's Sequel (1915) — Mr. Johns - Dora's Father