Como Actor/Actriz
Broken Blossoms or The Yellow Man and the Girl
Ringside Employee (uncredited)
The Student Prince in Old Heidelberg
Kellermann
Smouldering Fires
Member of the Committee
Evangeline
Michael
The Timber Wolf
Billy Winch
A Lady of Quality
The Groom (as Bobby Mack)
The Girl from Montmartre
Cab Driver
Under Two Flags
Rake (as Robert Mack)
Black Beauty
Derby Ghost (as Bobby Mack)
My Wild Irish Rose
Harvey Duff
The Bandit's Son
Jake Kirby (as Bobby Mack)
The Devil Bear
'Stub' Higgins, mine mucker
The Place Beyond the Winds
Street Food Seller
The Cowboy and the Lady
Justice of the Peace
Human Stuff
Butler
Ports of Call
Sly
The Girl of Lost Lake
Sim Perkins
Gates of Brass
The Opening Night
Aaron Hinkle (as Bobby Mack)
While Satan Sleeps
Bones (as Bobby Mack)
