Astarius Voidwalker
Importance:
Of the Astral Sea, and the only Sentinel candidate to win twice. He is also not a person in the way the rest of the field are. What comes out of the interviews, and what the heirs find the most interesting thing said in any of them, is that Astarius was once a sword - the blade the original Astarius carried, now going about under the name of the man who wielded it.
Since then
I was held, and then I was set down, and then there was no one left who could hold me. Tell me what you would have done with the rest of it.