I've just found the videos, OMG. I loved Morena's "I'm not a f**ing mechanic!"

I wish she would appear in Castle. I could imagine her like a studio boss for his movie, or something, where she is the same bossy lady as Beckett with some openly flirtatious remarks. She has fights with Castle in a similar manner as between Castle and Beckett. Beckett would be in a strange position because from one side she enjoys if someone manages to yank Castle's chains, but at the same time this's her partner and she wants to be loyal to him and of course the underlying sexual opening would make her a bit jealous as well.

I loved the following parts:

1. When Nathan called Jewel and complimented her on how pretty and smart she was…then realized he wasn't talking to Morena.

2. When Morena handed the phone to Jewel and said, "Wait, I've got a mechanic right here." 

3. When Jewel had everyone in the audience put up their middle finger, then took a picture of it to send to Nathan. 

I can't wait for ANY of them to guest star on Castle, but I know it'll be hard for Morena because of V's schedule.  Also, I think Gina Torres has a show that airs on ABC Family, called Huge.