On what kind of fool you're talking of. If we're talking a Shakespearean fool, one who is witty and clever and says outrageous things that expose the basic silliness of society - then Henry's our man. I giggle all through his first conversation with Catherine when

Then forming his features into a set smile, and affectedly softening his voice, he added, with a simpering air, “Have you been long in Bath, madam?” (ch 3)

He is playing the fool here and expertly skewering the affectly world-weary Bath denizens at the same time. And when he ends it with

“Now I must give one smirk, and then we may be rational again.”

I just lose it. So funny, and so charming.