Can you Recognize these Movie Actors/Actresses' Faces?

Hey everyone,
My friends and I are in a bit of a jam. We can’t figure out who the bottom three circled actors/actresses are. The top two are Cary Grant and I believe Barbara Hutton.

The people are all in pairs - a husband/wife or people who are in or had been in relationships such as Jack/Lara Boyle, etc. I am wondering if anybody here knows who the bottom three are?

Thanks!
Kirupa :block: