She doesn’t fit the OP criteria but she kinda looks like Deborah Kara Unger.
Looks like a cross between Teri Garr and Renee Zellweger (original face.)
Looks like Meg Ryan, since she messed up her face with surgery.
This is my guess. I have no clue about the toaster clue and all the rest of it, but had the OP just posted a picture and said “who is this”, MR would be my first response. By the way, I’ve never noticed her voice one way or the other, but my (British) ex thinks she’s got *the * sexiest American accent. Followed by Jodie Foster 
???
Kim Basinger with a wig cap maybe?
I think it is Teri Garr. She doesn’t look like either Melanie Griffith or Meg Ryan to me.
(My God, Melanie was hot, hot, HOT back in the '70s! :o )
Looks like we’ll never know.
Google recent Teri Garr pics.
Why would any of these women be called Chrissy? It’s probably just a not famous woman named Chrissy.