S Character – Actor
John Sackville – Dudley Stevens Mr Salinger – Richard Grant
Carol Sands – JoAnne Good Mr Saunders – Roy Patrick
Ken Sands – John Malcolm (Carol and Colin’s father) Valerie Saunders – Holly De-Jong
Colin Sands – Paul Blake (Carol’s brother) Mr Schofield – Sidney Gatcum
Iris Scott – Angela Webb Dudley Scrivens – Howell Evans
Rose Scott – Val Boothman (Iris’ mother) Jake Seager – Mike Lucas
Mandy (Amanda) Scott – Karen Ford Freda Sefton – Annette Kerr
Lisa Scott – Julia Schofield Bob Straker – John Downing
Tony Scott – Peter Graham Joe Shaw – David Garfield
Julie Shepherd – Jean Rogers Mr Shaw – Peter Laurence
Martin Sidwell – Charles Morgan PC Shaw – Brian Pollitt (1965)
Harry Silver – Stan Stennett (American GI) Gary Simmons – Hal Jeayes
Lenard Silver – David Rayner Jack Simms – Robert Dean
Tom Sinclair – Julian Somers (married Gloria Penn) Paula Smart – Penelope Goddard
Alf Sloane – Murray Brown
Harry Smith – John Lyons (1978) 
Mr Smethwick – Brian Beasley Jane Smith – Sally Adcock
Bruce Sorbell – Paul Aston (adopted child of Meg) (later known as Bruce Richardson with a different actor) Walter Wally’ Sopper – Max Wall (cousin of Arthur Brownlow)
Gaston Sorbell – John Rae Miss Spedding – Lisa Bergmayr
Carl Sprenger – John Payne Mr Stacey – Phillip Newman
Jack Staples – Michael Warr Cyril Stanford – Malcolm Russell
Geoffrey Steele – Lew Luton Petty Officer Sterham – Colin Rix
Paul Stevens – Paul Greenwood Ken Stevenson – Edward Higgins
Dorrie Stewart – Clare Woodward Mrs Stoker – Madge Gunn
Kathy Stokes – Paddy Kane Mrs Stokes – Joan McDonald
Robby Stokes – Arthur Skinner Melanie Straker – Jenny Russell
Squeaker – Ray Gromer (1965) Vic Stubbings – Brendan Collins
Angela Sutcliffe – Lydia Lyle Irene Summers – Melissa Stribling
Mr Svensen – Desmond Jordan Eddie Swann – George Howell
Miss Swift – Frances Nicholson Margaret Swann – Bonnie Beach
Sybil – Jean Campbell-Dallas Arthur Sykes – Red McNaughton