Enola Holmes

Sherlock Holmes

Mycroft Holmes

Eudoria Holmes

Lord Tewkesbury

Lestrade

Miss Harrison

The Dowager

Linthorn

Edith

Mrs. Lane

Sir Whimbrel

Lady Tewkesbury

Seamstress

Station Master

Miss Gregory

Miss Gregory II

Footman

Gardener

Tea Shop Assistant

Fleet Street Hawker

Constable

Young Enola

Toddler Enola

Agitator

Porter

Grace Whitting

Newspaper Boy (House of Lords)

Newspaper Boy (Fleet Street)

Newspaper Editor

Boarding School Teacher

Miss Fox

Young Sherlock Holmes (uncredited)

Police Inspector (uncredited)

Hawker (uncredited)

Conductor (uncredited)

Detective (uncredited)