cast question on two actresses

Other than Inga and Greta, there are only a few other female characters. There's the mother and the servant. But I'm curious about two others:

1) who plays the blonde with the blue eye shadow that is hanging out with Inga before and after her trip? She's really pretty, wish there was at least one erotic scene with her.

2) Who plays the divorced woman in Inga's dream that bring her home and then tries to have sex with her?

Looking at the IMDB credits, there is a Tina Hedstrom playing "Helen" and a Wivian Oiangen playing "Britta". Anyone know which is which? Unfortunately neither character gets addressed by name, at least on the English dub which is all that is on the new blu-ray release.