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)