[name the partner] or the more famous colleague

Each of the people below has a partner who is or was very well known, even if the person in the picture is well known him/herself. In one case, it's not a partner but a work colleague who is the famous one.

The task is to identify the other person not in the pic below.

1. A Japanese/American film producer:


2. A politician:


3. A violinist and mandolin player:


4. Lewisham boy:


5. Betty Joan Perske:


Answers

Daniel Craig, Ségolène Royal, Rod Stewart, Margaret Thatcher, Humphrey Bogart