Arthur Conan Doyle

Inspector Edward Scanlon

Madame Dupree

Alexandra Reda

Sam Carr, Stanley Garrity

Betty Fuller

Clarissa Eldridge

Madame Benoit

Marshall Taylor

Barclay Blake, Crown Prosecutor Daniels

Gilford Harrison

Margaret Cutler

Elizabeth Cummersworth, Elizabeth Pym

Bradley Fowler, Dr. Henderson

Chief Constable Davis, Inspector Davis, Inspector Jeffrey Davis

Estephanie

Paolo Firenzo, Pizza Man

Preston Monk

Superintendent

Lucy Maud Montgomery

Josephine Beattie

Shoeless Jack Leary

Harcourt, Mycroft Grimesby

Mrs. Hastings

Eunice

Mrs. Bessie Fellowes

Lewis Hoffat

President Theodore Roosevelt, Constable Morrison

Alexandra Reda

Driver

Millicent McGowan