Principal (Disney) Canon.
Apenas três Skywalkers 'são mencionados no cânone principal e todos são parentes diretos um do outro:
- Shmi Skywalker
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- Anakin Skywalker
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- Luke Skywalker
"Lendas" Canon
Excluindo os parentes do Shmi , parece que existem realmente outros Skywalkers, potencialmente até mesmo alguns que vivem em Tatooine (pelo menos de acordo com Vader).
According to a captured Rebel whom Darth Vader interrogated on the planet Centares, that was the name of the X-wing pilot who had destroyed the Death Star.
Luke Skywalker.
Even while inspecting his nearly completed flagship, the Super Star Destroyer Executor, at the Starship Yards of Fondor, Vader could not get Luke Skywalker out of his mind. He silently chewed on the name, and considered the fact that the boy had been born three years after the death of Shmi Skywalker. To the best of his knowledge, Anakin Skywalker had been his mother's only living blood relative.
Could there have been other Skywalkers from Tatooine? Vader allowed the possibility. After all, it wasn't an entirely uncommon name in the galaxy.