Eddie Marsan
— Manny Rubens
Helena Bonham Carter
— Esther Rubens
Gregg Sulkin
— Bernie Rubens
Stephen Rea
— Dr. Barrie
Catherine Tate
— Aunt Lila
Peter Serafinowicz
— Uncle Jimmy
Geraldine Somerville
— Alice Barrie
Richard Katz
— Rabbi Linov
Ben Newton
— Alvie
Charlie Clark
— Boy with Caliper
Nick Shirm
— Michael Hempel
Thomas Drewson
— Terry Shivers
Matt Bardock
— Mr. Grieg
Alex Black
— Linton
Cameron Crighton
— Captain
Francine Simmons
— Lady at Door
Martin Savage
— Senior Doctor
Ony Uhiara
— Nurse
Charles Ferber
— Student Doctor
Vincenzo Nicoli
— Leo
Jason Watkins
— Mr. Spender
Stephen Greif
— Uncle Henry
Joseph Weiland
— Boy at Table
Hannah Weiland
— Girl at Table
Bella Weiland
— Girl at Table
Daniel Dresner
— Barmitzvah Father 1
Daniel Marks
— Raymond
Lawrence Lambert
— Barmitzvah Father 2
Sam Marzell
— Stephen
David Verrey
— Mr. Kimmel