Don't Lose Your Head

Sidney James

Sir Rodney Ffing, the Black Fingernail

Kenneth Williams

Citizen Camembert

Jim Dale

Lord Darcy Pue

Charles Hawtrey

Duc de Pommfrit

Peter Butterworth

Citizen Bidet

Joan Sims

Désirée Dubarry

Dany Robin

Jacqueline

Peter Gilmore

Citizen Robespierre

Marianne Stone

Landlady

Michael Ward

Henri

Leon Greene

Malabonce

David Davenport

Sergeant

Richard Shaw

Captain of Soldiers

Valerie Van Ost

Second Lady / Girl at Execution

Jennifer Clulow

First Lady

Jacqueline Pearce

Third Lady

Lewis Alexander

Citizen (uncredited)

Patrick Allen

Narrator (voice) (uncredited)

Peter Avella

Citizen (uncredited)

Alan Bennett

Soldier (uncredited)