Ok bitches, I spent a long time thinking about this and here is my carefully thought out casting of friends and associates (Leaving Dr Who out, because it's too hard.)

Jack: Hope

Ianto: Karen

Owen: Ren
Tosh: Lana

Gwen: Mary

Susie: Lisa McK

Captain John: Claire

Rhys: Audrey
PC Andy: Erinna

Janet: Monkey

The Pterodactyl whose name I can't spell: ... ?