This is another Destiny DLC, but is not released on disc
Nathan Fillion who is the voice of Cayde-6, was in a great number of other TV series and movies; there is insufficient space here to list them all.
There is a sniper rifle called Event Horizon, which is most likely a reference to the movie Event Horizon (1997)
Unlike The Taken King, Rise of Iron is only available on PlayStation 4 and Xbox One.