Imvari (the same word is used for both the singular and the plural) were originally brought into Together as a kind of beefy muscle. They were meant to be very tall (over two meters, which is more than six and a half feet) and ruthless in my Star Trek fanfiction.
I realized after a while – after I had written The Reptile Speaks and had decided that the Imvari did not keep their genitals where most of us do – that this concept had been covered before, in the Star Trek: Original Series film, The Undiscovered Country. It took a while to find the image, but I did.
Hence, this unnamed alien male is – tada! – an Imvari.
Language and Culture
Unlike the Calafans, I didn’t bother writing a language for these folks. However, I did need writing, as a plot point in Together is an escape on an Imvari ship. Hence the Imvari (like the Daranaeans would also get) were given pictograph writing.
Pictographs were meant to be somewhat similar to European road signs, with basic circles, arrows, triangles, squares, rectangles and squiggles denoting things like warp factors, weapons, clothing storage, etc.
As a species that’s considerably taller than most others, Imvari tend to stay away from the rest of us. In Together, Lili and Deb learn that the Imvari are not a threat when it comes to sexual assault as they are simply incapable of pairing with human women.
Weaponry and Duties
In the E2 stories, and in Together, it’s established that they keep prisoners in line with what I’m calling shocking sticks. These types of implements are somewhat akin to the canon Klingon pain sticks.
In both the E2 stories and in Together, the Imvari work as guards, slave catchers and the like but are generally not seen to be the brains of any operation. That honor belongs to, respectively, the Orion Syndicate and the non-humanoid Andromeda galaxy species, the Zetal.
Apart from Together, Imvari are mentioned a bit in the HG Wells stories, but really only in passing as being yet another galactic species that is at peace with and a part of the successor entity to the Federation.
In the E2 stories, they get a lot more air time, as I needed a villain species that would not be the Xindi. In the E2 stories, the Imvari are responsible for gathering up vulnerable individuals for sale to the Orion Syndicate and processing into slavery. Many of these processed individuals are Ikaarans, and it is on an Imvari slaver ship that Lili and Jay first spend any real time with Ikaarans (although there is an earlier communication which is more formal, but the Ikaaran captain, Jeris, declines Captain Archer‘s offer to share in their Christmas dinner).
Before you judge the Imvari as being mere brutes, the species has a writing that is intended to be almost like a modern, stylized version of Egyptian hieroglyphics. By the time of Richard Daniels (31st and 32nd centuries), the species is at peace with nearly all the others in the galaxy. Not bad for a bunch of interstellar thugs.