Florence Foster Jenkins

Meryl Streep

as Florence Foster Jenkins

Hugh Grant

as St. Clair Bayfield

Simon Helberg

as Cosmé McMoon

Rebecca Ferguson

as Kathleen Weatherley

Nina Arianda

as Agnes Stark

Stanley Townsend

as Phineas Stark

Allan Corduner

as John Totten

Christian McKay

as Earl Wilson

David Haig

as Carlo Edwards

John Sessions

as Dr. Hermann

Brid Brennan

as Kitty

John Kavanagh

as Arturo Toscanini

Pat Starr

as Mrs. Vanderbilt

Maggie Steed

as Mrs. James O'Flaherty

Thelma Barlow

as Mrs. Oscar Garmunder

Liza Ross

as Mrs. EE Patterson

Paola Dionisotti

as Baroness Le Feyre

Rhoda Lewis

as Mrs. Patsy Snow

Aida Garifullina

as Lily Pons

David Mills

as Augustus Corbin

David Menkin

as Carlton Smith

Sid Phoenix

as Corporal Jones

Tunji Kasim

as Private Smith

Carl Davis

as Orlando Adams

Lloyd Hutchinson

as Microphone Engineer

Richard Kilgour

as Elevator Operator

Jonathan Plowright

as Ernest Ziegler

Josh O'Connor

as Donaghy

Brian Fisher

as Finkler

Stefan Bednarczyk

as Stephen Foster

Nathan Osgood

as Stagehand

Caolan Byrne

as Stagehand 2

John Guerrasio

as Newspaper Vendor

Ewan Stewart

as Colonel

Greg Lockett

as Chuck

Cameron Cuffe

as Gino

Georgina Morton

as Pearl

James Sobol Kelly

as Edgar (Diner)

Dar Dash

as Antonio

Grant Gillespie

as Brooklyn Man

Nat Luurtsema

as Tallulah Bankhead

Philip Rosch

as Archie the Doorman

Elliot Levey

as Edgar Booth Cunningham, Jr.

Danny Mahoney

as Clifford B. Thornton III

Simon Markson

as Piano Tuner

Mark Arnold

as Cole Porter

Adele Smyth-Kennedy

as Wag Woman

Jenny Hawkins

as Florence's Dresser

Hallam Rice-Edwards

as Corbin's Gang

Victory Maburutse

as Corbin's Gang

Rosy Benjamin

as Corbin's Gang

Oliver King

as Corbin's Gang

James Wallace

as Corbin's Gang

Charles Streeter

as Corbin's Gang

Andrew Sloane

as Corbin's Gang

Madeleine Knight

as Corbin's Gang

Stephanie Lane

as Corbin's Gang

Philip Gascoyne

as New York Journalist (uncredited)