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.
as Lightning', a Dog
as Prince (uncredited)
1934
as Lightnin' - the Super Dog
1926
as Lightning', a Dog
1927
as Lightning - the Dog
1936
as Leopold, 'Leo' the dog
1935
as Lightning - Ken's Dog (uncredited)
1935
as White Fang
1936
as Lightning, Renfrew's Dog
1937
as Shep the Dog
1925
as Lightnin' - the Super Dog
1926
as Lightnin' - the Super Dog
1925
as Lightning, Jed's Dog
1935
as Lightning - the Dog
1936
as Lightning, Renfrew's Dog
1937
as White Fang
1936
as Lightning - the Dog
1936
as Leopold, 'Leo' the dog
1935
as Lightning - Ken's Dog (uncredited)
1935
as Lightning, Jed's Dog
1935
as Lightning
1934
as Prince (uncredited)
1934
as Lightning', a Dog
1927
as Lightnin' - the Super Dog
1926
as Lightnin' - the Super Dog
1926
as Shep the Dog
1925
as Lightnin' - the Super Dog
1925