No. It is mainly a German name but it can be Jewish.
No.
Stubby Kruger's birth name is Kruger, Harold.
Amanda Kruger's birth name is Amanda Catherine Kruger.
Bobby Kruger's birth name is Robert Landon Kruger.
Fred Kruger's birth name is Fredrik H. Kruger.
Ottilie Kruger's birth name is Ottilie Ann Kruger.
Joseph Kruger II's daughter's name is Robyn Kruger.
No it is mainly tended to be a christian name
Diane Kruger's birth name is Diane Heidkrger.
The name Tillmann (sic) is German and is found mainly in parts of the Rhineland and Westphalia. It isn't specifically Jewish.
As far as I know, Freddy Kruger's full, given name is Fred Kruger.
The French spelling for the first name Rachael is 'Rachel'. That particular first name is mainly used within the Jewish community.