Wheezy

My friend at rLog owns a most interesting hat. It's a Disney hat that reads "Grumpy" and is adorned with a picture of the corresponding dwarf. This alone might qualify the hat for praise. However, what makes the hat truly fascinating is that Sir Rich of rLog only wears the hat when it's an indication of his demeanor.

It has been proposed that I should procure a similar hat to keep the public duly informed. Perhaps mine should read "Wheezy". Unfortunately, Wheezy isn't a proper dwarf. But if I had such a hat, I'd be wearing it right now.

Can you name all of the seven dwarves?