Check out our When It Was Cool video on this really cool Star Wars Emperor's Royal Guard action figure from the 2016 3.75 inch Black Series. This figure is pretty hard to find. I wanted multiples but so far have only found one in the store at a local Walmart. Looking at them on eBay in October 2016 they are often selling for in excess of $20 and sometimes as much as $30.
The figure comes with three weapons- a small laser pistol that fits into a holster on his right side, a double bladed staff, and a force staff. In addition to that, the Royal Guard comes with two helmets, a cloth robe, and a set of shoulder pads / armor.
I'm not sure who or what the head sculpt is referencing. It's an older bearded man and perhaps there is no Star Wars canon reference to it but I have to wonder why they chose this, in my opinion, odd head sculpt for the figure. Again, perhaps it is referencing a comic book, animated show, or book that I haven't seen. The Emperor's Royal Guard are never seen unmasked in the movies.
The alternate helmet is from a comic book series I'm pretty sure and I'm not even sure if that series is still in canon. If I remember correctly (and I may not) I thought that design was from a Dark Horse comic book series.
The one criticism I have of the figure is the armor, or lack thereof, under the robe. Previous versions of the figure had a more impressive looking armor underneath but this one is dress out in very basic clothing. I suppose you could imagine the armor is under the clothes since the boots and gloves are very armor-like in appearance but it would have been a nice addition if we could have seen it. Still, minor criticism aside, it's probably my favorite Star Wars Royal Guard figure ever made.