Flavia

Molly Belle Wright

Flavia de Luce

Martin Freeman

Colonel Havilland de Luce

Toby Jones

Inspector Hewitt

Jonathan Pryce

Dr. Kissing

Annette Badland

Mrs. Mullet

Karan Gill

Dogger

Hannah New

Harriet De Luce

Jamie Beamish

Horace Bonepenny

Nicholas Burns

Max Cortezi

Private Jones

Zach Colton

Young Havilland

James 'JD Knight' Dunn

Thug 2 (as James Dunn)

Marama Corlett

Zemirah

Blake Rowden

Baby Flavia

Casey Rowden

Baby Flavia

Evelyn Teixeira

Young Ophelia

Mya Florence Rose Angus

Young Daphne

Chipo Chung

Aunt Felicity

Ariella Glaser

Ophelia de Luce

Tallulah Conabeare

Daphne de Luce

Dominic Coleman

Sgt. Woolmer

Orlando Norman

Sgt. Graves

Michael Culkin

Dr. Darby

Elliot Collins

Tom

Lucy Briers

Miss Mountjoy

Justin Edwards

Mr. Tully

Nicholas Burns

Frank Pemberton

Mensah Bediako

Vicar

Antony Bunsee

Max

Fode Simbo

Desk Sergeant

Lawrence Russell

Mr. Teesdale

Liam Carrington

Young Bonepenny

Arthur Heath

Young Pemberton

Nadia Albina

Mrs. Ruggles

Kenna Bethany

Nurse

Ben Miles

King George