Mark --> Rhys
Roger --> Jack
Mimi --> Ianto
Collins --> Doctor
Angel --> Master
Maureen --> Gwen
Joanne --> Tosh
Benny --> Owen

Yes, this is what happenes when I have insomnia. If I ever get the TW episodes I may just go and do various vids to the songs.

If you disagree with any aspect of the casting, leave a comment and tell me why! ;)