Ian Richardson as Sherlock Holmes

David Healy as Dr. John Watson

Thorley Walters as Major John Sholto

Michael O'Hagan as Mordecai Smith

Cherie Lunghi as Mary Morstan

Joe Melia as Jonathan Small

Terence Rigby as Inspector Layton

Clive Merrison as Bartholomew Sholto

Richard Heffer as Thaddeus Sholto

John Benfield as McMurdo

Gordon Rollings as Mr. Sherman

John Pedrick as Tonga

Robert Russell as Williams

Moti Makan as Lal Rao

Kate Binchy as Maid

Merelina Kendall as Mrs. Smith