Apart from Tom Bombadil, I often think of Radagast. In fact, he is kind of an "unsung hero", because he is nowhere really described. Sad. I alwys find him so interesting, a kind of "master & messenger" of the wildlife, probably working in accordance to Yavanna.
Next to Tom Bombadil, he is the second most mysterious figure to me.
Apart from those two, Goldberry is the next most interesting figure to me, in a similar way, because she is so mysterious.
They all have so much power - yet - very unlike to Sauron - they don't show it. They downplay it, and that's even one very strong understatement !
The only real drawback of all three is, that they are not well to implement in any kind of game without loss of their … "shroud of mysteriousness".
Another to me very interesting figure is Strider - the Strider first met !
This figure is highly interesting to me, becausew he is "shrouded by mysteriousness" asw well - but in a different sense. He really doresn't look like someone to trust. Not at all ! And exactly that is what I like of him : The kind of "play with clichés" !
He is kind of the opposite to … let's say Sauron : He isn't open. Not at all. (Sauron, on the other hand, is VERY open - once he has taken his "seat" in his fortress ! But before that, he might even have looked like a shrouded Strider himself !) He is a bad one. He looks like a bad one. He acts … well, he doesn't act trustworthy, not that much, at least. The others have to trust him, they don't do it that much freely, but rather because of sheer need. They don't like him that much, still, they only travel with him because a dear friend had told them so.
Edit : Tom Bombadil would not be liked by a current gamer's audience. Because … - even although he has so much power - and powah is a much sought feature in games by current gamers ! -
- although he has so much power, he is portrayed like the ultimate "hateable" character : childish, colourful, semingly powerless - all attributes hated by current gamers. Put him into Dark Souls, for example, and you'll know what I mean.
Simply, Tom Bombadil would be cut out by a modder as soon as he put into a game.
Why ? Because everything much be so much dark, grim, gritty, grey, dreadful, deadful, and dark again. "They" call that "a mature game". But in fact "they" are doing nothing but trying to look away from the fact that "mature" can also mean "childish joy" oder the look of a colourful birthday present, for example.
I rather suspect that with this use of the word "mature", "they" rather mean "manly", because colourfulness, for example, is the direct opposite of "manlihood" people often want. A Gansta Rapper would NEVER be colourful. And he would openly say so (that colourfulness is childishness).