Regex: select name and surname

Regex: select name and surname

I want to select just the names of persons in the 3 examples and exclude
this part :(Nom : Mr or Nom : Mme ) :
Nom : Mr Name Surname Nom : Mr Name1 Name2 Surname Nom : Mme Name Surname
Nom : Mme Name1 Name2 Surname
I'm using Regex with a generator : http://gskinner.com/RegExr/ I tried
(?<=Nom :)(.*)
but it gives nothing as it includes Mr or Mme that I want to exclude any
help please?
Best regards Amorino