Il Segno dei Quattro

Jeremy Brett

Sherlock Holmes

Edward Hardwicke

Dr. John Watson

Jenny Seagrove

Mary Morstan

Ronald Lacey

Thaddeus und Bartholomew Sholto

John Thaw

Jonathan Small

Emrys James

Inspector Athelney Jones

Alf Joint

McMurdo

Kiran Shah

Tonga

Terence Skelton

Captain Morstan

Rosalie Williams

Mrs. Hudson

Robin Hunter

Major Sholto

William Ash

Jack Smith

Ishaq Bux

Lal Chowder

Derek Deadman

Williams

Marjorie Sudell

Mrs Bernstone