Well, this is still kind-of up in the air at the moment. Could use a few more fairies and pixies to be honest, but the ideas so far are good. What I'm aiming at is to have four or five different species of little folk, all with different characteristics and abilities.
Fairies: Mostly female, tend to be naked or dressed as flowers, have wings, have the most powerful magic that they use simply by pointing, tend to disguise themselves as flowers, dragonflies or those little fluffy seeds that float around in summer, or fireflies at night.
Pixies: Mostly male, can be naked but mostly wear clothes made from leaves, no wings, ride on the backs of tame rodents (rats, squirrels, rabbits). Magic is generally through sprinkling pixie dust. Usually disguised as leafy twigs or amphibians (they can swim), and like to sit on toadstools.
Gnomes: Can be male, female, both or neither, always naked. They usually don't travel far but when they do they tend to use underground tunnels. Magic is through herbs, roots and seeds, and mixing potions. Usual disguises are gnarled roots and fungus.
Imps: Male or female but the genders have different abilities. Female imps can pass through solid objects and can carry things with them as they do. Male imps can "jump" from where they are to anywhere the can see, within reason (Obviously they need to be able too see where they are landing, so jumping to the top of a mountain ten miles away is not allowed). They can also cause anything they can see that is small enough for them to lift to move to any location they can jump to. Imps are capable of becoming invisible. They have wings, and can fly. They are usually naked. They have the ability to whisper "suggestions" to humans.
Sprites: Sprites have no corporeal form, and tend to be seen by humans as whisps of smoke, or that odd movement in the corner of the eye. They are asexual, and their magic tends to be that of hypnosis. It is the sprites that tame the animals for the pixies to ride. Spites are the guardians, patrolling the forest and protecting it by using their powers to turn away inquisitive humans and hungry predators. Having no physical form, they can move freely, flying on the air currents. Sprites are also very few in number (Most likely NPCs).
That's what we have so far...
The humans, there are certain roles available:
The Old Witch: GM Role. Not really a witch, just an eccentric old lady who owns the old house, and who's death sparks off the story.
The Evil Nephew/Neice: Again, not really evil, just greedy and insensitive. He/she is the Old woman's closest living relative and feels that he/she should have been left the property in the will.
The Property Developer: Again, not a bad person, just someone who sees prime real estate in terms of dollar signs. The nephew/niece wants to sell the property to this character.
The Mad Scientist:. This is the same role as Dr Kornbluth in the movie "Splash". The "pixie-hunter" who goes around investigating any and all reports of "little people". When he/she hears of the old woman's will (which is so farcical it makes the news), he/she heads over to the property to try and find the little people.
The young people: These are the good guys. Young folks between 16 and 21 who have been visiting the old woman for years, have grown up on her stories of little folk, but no longer really believe in them, however they have been named as beneficiaries in the will, under a rather unusual clause. They can be related or just be friends, however there should be a pre-existing relationship between them. They can even be lovers if players wish.
There can be as many young people as you want, but I'd like there to be more little people than young humans please?
The adult roles can and probably will all be played by me as GM unless anyone actually wants those parts.
I'm also going to say okay to players having two characters but only one can be human.