The conversation on a bus between 'The Girl in the Black Plastic Mac' (played by Tracey Crisp) and her friend (this actress is not credited) goes like this:
BLACK MAC : It looks like rain. I'm glad I put my mac on.
FRIEND: Yes, I must get one of those.
(Black mac then briefly speaks to Michael Bentine before resuming the conversation.)
BLACK MAC: What will you get? Black or red?
FRIEND: I think I'll stick to the black.
BLACK MAC: Why?
FRIEND: My boyfriend's kinky, not a Communist!
The Sandwich Man
The girl in the brown mac in the park photoshoot is played by Suzy Kendall.
In a later scene in Billingsgate fish market, Black Mac's handbag gets filleted!