
Acting
Geraldine Margaret Agnew-Somerville (born 19 May 1967) is an Irish actress best known for her roles as Detective Sergeant Jane "Panhandle" Penhaligon in Cracker, and Lily Potter in the Harry Potter film series.
Description above from the Wikipedia article Geraldine Margaret Agnew-Somerville , licensed under CC-BY-SA, full list of contributors on Wikipedia.

Fair Play
as Emily's Mother

Gorka
as Tonya

The Gentlemen
as Lady Pressfield

Christmas in the Highlands
as Lady McLeod

Goodbye Christopher Robin
as Lady O

The Hippopotamus
as Rebecca Logan

Kids in Love
as Linda

Automata
as Samantha

The Riot Club
as Miles' Mother

Grace of Monaco
as Princess Antoinette

Kiss Me First
as Ruth Palmer · 4 ep.

Prime Suspect 1973
as Joyce Tennison · 5 ep.

Quirke
as Sarah Griffin · 2 ep.

Titanic
as Louisa, Countess of Manton · 4 ep.

Inspector George Gently
as Alethea Blackstone · 1 ep.

Survivors
as Fiona Douglas · 3 ep.

The Children
as Sue · 3 ep.

Jericho
as Fiona Hewitt · 1 ep.

New Tricks
as Asst. Commissioner Cynthia Kline · 2 ep.

The Inspector Lynley Mysteries
as DS Michelle Tate · 1 ep.

Harry Potter and the Deathly Hallows: Part 1
2010