Judi Dench
Philomena

Steve Coogan
Martin Sixsmith

Sophie Kennedy Clark
Young Philomena

Mare Winningham
Mary Hess

Barbara Jefford
Sister Hildegarde

Ruth McCabe
Mother Barbara

Peter Hermann
Pete Olsson

Sean Mahon
Michael Hess

Anna Maxwell Martin
Jane

Michelle Fairley
Sally Mitchell

Wunmi Mosaku
Young Nun

Amy McAllister
Sister Anunciata

Charlie Murphy
Kathleen

Cathy Belton
Sister Claire

Kate Fleetwood
Young Sister Hildegarde

Nika McGuigan
Bridie

Simone Lahbib
Kate Sixsmith

Sara Stewart
Marcia Weller

Gary Lilburn
Priest

Charles Edwards
David

Nicholas Jones
Dr. Robert

Paris Arrowsmith
Bellboy

Marie Jones
Barman's Mum

Frankie McCafferty
Barman

Florence Keith-Roach
Check In Operator

Elliot Levey
Alex

Timothy Paul Jobe
Doc Hess

Jon Wennington
Congregation Member (uncredited)