I have been wanting to try Call of Cthulu, but I would need to be friends with the DM-- I have already decided that I want to play as a race that is technically in the mythos, but not in the rulebook, and which could be considered OP-- and would also be difficult to play properly.
They are a central focus of this story...
http://www.hplovecraft.com/writings/texts/fiction/mo.aspxBasically, they look like native americans, but TOTALLY ARE NOT. Perfect mythos monsters to be played by a PC IMHO-- Look human in every way, but are culturally acclimated to other horrors, and so would not go insane so easily. (but would likely freak the shit out when presented with certain high power creatures, where ignorant humans would rush in where angels fear to tread; It is one thing to risk insanity and learn of such horrors through reading the necronomicon-- It is entirely another to be in telepathic contact with them as a cultural staple.
) Also possess crazy psycho-kinetic and telepathic powers. Otherwise highly vulnerable, like humans.
Playing as one would require DM approval, and would need house rules, since they are not in the official source book (other than the actual short stories, as cited.)
I would compose a backstory of a "very youthful" member of this race, successfully bipassing the guardians and making it to the surface. As the short story points out, the youngers of this race are susceptible to human-like curiosity and foolishness; If one got past the elders, they could investigate the humans, the way humans investigate the mythos creatures. This means they would come off as very socially awkward (not acclimated to human society), but very useful on mythos investigations (knows all about the other creatures first hand)-- Would be difficult to play, as being deceptive toward the party to keep their "No, I am human man-- honest!" real identity a secret (seriously, do you think the party would feel comfortable having a creature that can literally turn them wrong-side-out with a thought in the room with them while they slept?), meaning that they would have to be holding their punches all the damn time, and only going full superman when nobody else is around, clark kent style. They would be very difficult to play properly, and the only way to play them the right way is with support from the DM.
The short list of documented powers include:
Astral projection
Telepathy
Telekinesis (like, crazy telekinesis-- full mastery over matter using thought)
Teleportation
Near-immortality (agelessness)
And those are "natural" abilities, not magic. Like I said, Easy to consider OP. Needs to be played very tightly with their backstory as a curious youth, who is being very very careful to keep their identity secret from the dangerous and unpredictably brash humans who would likely come to crush them in force if they are discovered-- while also satisfying youthful curiosity about said humans.
Keeping that identity secret would be something this character would literally kill to keep secret-- and could kill in complete secrecy. Their clandestine actions would require very careful cooperation with the DM. Amusingly, this would be easier to accomplish with an online game session, rather than in person. (hard for the DM to hide the fact that he is doing some really strange rolls every time a certain player is doing things when everyone is watching them... LOL.)
For the most part, this character would avoid conflict wherever possible (engaging with full powers exposes his identity. Only fights when REALLY needed.), and would masquarade as a weak and worthless intellectual type player with abysmal stats, but comprehensive (and thus very useful) knowledge of the mythos. Somehow always manages to avoid getting killed though, and mysteriously is highly resistant to going batshit from mythos monster attacks. Favors using primitive weapons, or magical weapons. (magical weapons give a good smokescreen to the use of their natural powers, as ignorant humans would not know better.)
I wish I knew people that play in my area. I would be totally down for some of this ^ and think I could play the character well. His intellectual interest in humans would allow him to form (carefully guarded) relationships with his party members, as he would indeed be genuinely curious about their problems, live histories, and motivations, stemming from his anthropological primary motivation.