One thing that every Companion has in common is that they're written with heroic qualities. This is likely so that the player can make sense of the Companion's storyline and want to support them until the end. Unfortunately, this does not leave a lot of variety for players who wish to roleplay as villainous characters, since the vast majority of Companions do not agree with criminal activities like murder.
Imagine if we were to get a Vampire Companion in the near future — should they scorn the player for feeding and using Vampire abilities, like a member of House Ravenwatch would, or should they encourage the player to do these evil deeds? If we get the former, then how long would it be — if ever — until we get another Vampire Companion who is the latter? Players who enjoy roleplaying as an evil Vampire would hate to have a preachy Vampire Companion tell them not to act like a Vampire, and would prefer a Companion who fits their playstyle better.
One excerpt from the Companions Q&A reads:
What we care about, first and foremost, is creating compelling characters that players want to adventure with.
So, would
you want to adventure with an evil Companion? Not a Companion who is indifferent about murder, but one who actively encourages you to murder and who gains rapport whenever you do? Would you feel comfortable around this sort of Companion if your character was also evil? Should Companions even be allowed to be evil, and should the player be allowed to go along with them?
PC/NA — Lone Werewolf, the Templar Khajiit Werewolf
Werewolf Should be Allowed to Sneak
Please give us Werewolf
Skill Styles (for customizing our fur color),
Grimoires/Scribing skills (to fill in the holes in our builds), and
Companions (to transform with).
Would you want to adventure with an evil Companion? 146 votes
No, I would NOT want to adventure with an evil Companion.
Yes, I would want to adventure with an evil Companion.
Other (please describe your thoughts)