Doctor Watson / Mr. Spiggot / Mrs. Ada Holmes / Piano Player

Dudley Moore

Sherlock Holmes

Peter Cook

Stapleton

Denholm Elliott

Beryl Stapleton

Joan Greenwood

Dr. Mortimer

Terry-Thomas

Frankland

Hugh Griffith

Arthur Barrymore

Max Wall

Mrs. Barrymore

Irene Handl

Sir Henry Baskerville

Kenneth Williams

Mary Frankland

Dana Gillespie

Selden the Axe Murderer

Roy Kinnear

Glynis

Prunella Scales

Massage Parlor Receptionist

Penelope Keith

Iris

Lucy Griffiths

Baskerville Police Force

Spike Milligan

Marsha

Ava Cadell

Sir Henry Baskerville

Kenny Williams

Mrs. Tinsdale

Jessie Matthews

Elder masseuse

Rita Webb

Sausage and Mash Lady

Anna Wing

Nun

Vivien Neves

Nun

Josephine Tewson

Shopkeeper

Henry Woolf

Nun

Jacquie Stevens