I play more NWN which is based off of but not the same thing as D&D.
My most frequent repeat character (the one I use in various modules) is Sirind "Zy" Zyrustine, a chaotic neutral/good (he's been swerving back and forth lately) elven rogue/wizard/arcane archer. In NWN you're allowed to pick your character's voice set, so for the lulz I gave him the "High-Strung Evangelist" voice set which is probably the funniest voice acting of all time.
"Attack! I SAYYY~ attack!"
"You are SOOO~ gonna feel some wrath!"
"Keep it up and I'll knock you into LAAA~ST week so you can spend it 'till now looking forward to me kicking your tail again!"
Now when I play him I pretend he's the cloud cuckoolander who lives by the philosophy of "God helps those who help themselves... so I'm helping myself to some of this evil count's gold."