JEAN-HERON VICQUEMARE AS A HISTRIONIC SCHIZOID.
By reading this, I am under the assumption that you are at least somewhat familiar with Disco Elysium or the characters I am digging into.
If you are not, I urge you to play Disco Elysium at least once. You will probably see the length of the game and I'll tell you it took a full month for me to complete a single playthrough, but it was entirely worth the time and effort. Disco Elysium is chock full of political commentary, well-written characters, a gorgeous soundtrack by British band Sea Power, and a beautiful open world to explore.
Go play Disco Elysium.
I personally view Satellite-Officer Vicquemare as a Histrionic Schizoid. With the latest editions of the ICD and DSM, personality disorders are characterized in more of a dimensional model, versus the prior prototype model relying on clinicians to be able to match a patient with their prototype of a disorder. This means that two disorders that previously were viewed as opposite ends of a spectrum, like SzPD and HPD, can coexist in one individual.
All the information we have on JHV's character comes from both the game itself and word-of-God from Martin Luiga, head writer and wordbuilder of Disco Elysium. If you have played through the game before then you will recognize the problem we run into.
We don’t have enough information about JHV to say specifically what clinical disorder he struggles with. And, to that, I argue we do have enough information.
According to Twitter posts authored by Luiga, Vicquemare has been described as "...likely a schizoid", which would explain his and HDB's dynamics and codependence to one another. This does not explain JHV's investment into the relationship, though. SzPD is characterized by deficits in social and interpersonal skills and a lack in close relationships.
Yet, with the inclusion of HPD, his deficits in social and interpersonal skills but closeness to HDB could be explained.
Theodore Millon, a man whose name is determined to be autocorrected into Million by my computer, came up with six subtypes to HPD. These subtypes are known as appeasing, vivacious, tempestuous, disingenuous, theatrical, and infantile; with vivacious being the most stereotypical form of HPD. When you think of HPD, your mind often jumps to vivacious and sexually promiscuous behaviors, which JHV never shows a sign of in game. And, if we are to believe Luiga in regarding JHV as a man with Schizoid tendencies, then he has a total disinterest in anything sexual.
This is exactly where subtypes come into play.
Personally, JHV demonstrates many tempestuous traits within the game. Millon defines tempestuous as "impulsive, out of control; moody complaints, sulking; precipitous emotion, stormy, impassioned, easily wrought-up, periodically inflamed, turbulent." with negativistic features. To utilize an assessment that clinicians often use to categorize patients:
Behavior: JV is demonstrated as turbulent and "brooding" (Ruby the Instigator). He's incredibly irritable throughout the game, but that could be explained through HDB's behavior regarding the Hanged Man case. His comments towards HDB in the Whirling-In-Rags could be described as dramatic, even attention-seeking.
Speech: JV tends to speak with a loud tone, his words often are dramatic and overexaggerated (with the cost of the damaged Coupris). He tends to draw attention to himself and goads others into getting into verbal battles with him.
Here's where we get into specific game quotes.
Many of these dialogues don't directly prove anything, yet briefly observing Vicquemare's behavior leads you to understand how deeply theatrical and attention-seeking this man is. He often overexaagerates and blows up at his peers.
I cannot properly explain the entire Man with Sunglasses situation. Essentially, JV dresses up in a blonde wig and sunglasses and sits at a table in the Whirling-in-Rags specifically to antagonize HDB and his memory loss.
If this doesn't scream attention-seeking to you or rings some bells regarding tempestuous subtypes, then I don't know what to tell you.