Actor
Lightning the German Shepherd
Lightning was a German Shepherd from a line of canine silent film stars. A grandson of Strongheart, Lightning was billed as "The Wonder Dog" and "The Marvel Dog". He began life as a runt but grew to be larger than average for the breed, and he was very intelligent. Lightning appeared in numerous movies. From Wikipedia.
Acting
The Lure of the Wild
Shep the Dog · 1925
Lightnin' Strikes
Lightnin' - the Super Dog · 1925
Wings in the Dark
Lightning - Ken's Dog (uncredited) · 1935
The Case of the Howling Dog
Prince (uncredited) · 1934
A Dog of Flanders
Leopold, 'Leo' the dog · 1935
When Lightning Strikes
Lightning · 1934
White Fang
White Fang · 1936
Speed
Lightning', a Dog · 1927
Two in Revolt
Lightning - the Dog · 1936
Man's Best Friend
Lightning, Jed's Dog · 1935
Renfrew of the Royal Mounted
Lightning, Renfrew's Dog · 1937
Lightnin' Flashes
Lightnin' - the Super Dog · 1926
Lightnin' Wins
Lightnin' - the Super Dog · 1926