Potential face claims for Walburga Black:

NAME: Charlotte Rampling
DATE OF BIRTH: 5 February 1946
NATIONALITY: British
EYE COLOUR: blue
HAIR COLOUR: brown/blonde

NAME: Uma Thurman
DATE OF BIRTH: 29 April 1970
NATIONALITY: American
EYE COLOUR: blue
HAIR COLOUR: blonde/black

NAME: Rachel Weisz
DATE OF BIRTH: 7 March 1970
NATIONALITY: British
EYE COLOUR: brown
HAIR COLOUR: brown/black

NAME: Alicia Vikander
DATE OF BIRTH: 3 October 1988
NATIONALITY: Swedish
EYE COLOUR: brown
HAIR COLOUR: brown/blonde

NAME: Marion Cotillard
DATE OF BIRTH: 30 September 1975
NATIONALITY: French
EYE COLOUR: blue
HAIR COLOUR: brown/black

NAME: Anjelica Huston
DATE OF BIRTH: 8 July 1951
NATIONALITY: American
EYE COLOUR: brown
HAIR COLOUR: brown/black

NAME: Cate Blanchett
DATE OF BIRTH: 14 May 1969
NATIONALITY: Australian
EYE COLOUR: blue
HAIR COLOUR: blonde/brown/black/red

NAME: Kristin Scott Thomas
DATE OF BIRTH: 24 May 1960
NATIONALITY: British
EYE COLOUR: blue
HAIR COLOUR: brown

(suggested by kencbi)