Casting mis-steps

[Carol]

Carol earlier:
> > "Miscast" just means that an actor is cast in an unsuitable role. Imagine Madonna playing McGonagall, for example. 

md responded:
> Madonna could totally pull it off. Now that she's older, puller her hair back tight and let her rip. 
> 
> I could actually see that.
>
Carol again:

Can you? I can't. I'd as soon watch Dame Maggie play Madonna?

However, zanooda wanted an example of miscasting. I'll try to find one that everyone can agree on. How about Judi Dench as Narcissa Malfoy or Hugh Grant as Wormtail? I was going to say Keira Knightley as Professor Sprout, but that's too extreme, right? No one would ever consider it.

Carol, tossing out what she considers to be humorous casting ideas