the narrator for TTK trailer... it's the Nine, guys, think about it. They've been watching us, we haven't met, it's not Osiris bc people say it's not the same voice, and the chances are that Toland was lost to Crota,
and think about this, Xûr sells Hive artifacts.
but the biggest indicator - the Hive have entered The Jovians, Territory of the Nine. therefore there would be reason to reach out to us.
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I think it's Liam Neeson.