| Name | Book/story/stage title | Notes
|
| Salt, Gloria | Pigs Have Wings | Engaged to Orlo Vosper and Sir Gregory Parsloe
|
| Saltzburg, Mr | Jill the Reckless | Music director The Rose of America
|
| Salvatore | The Indiscretions of Archie | A put upon waiter at the Hotel Cosmopolis
|
| Sampson, Bernie | Barmy in Wonderland | A theatrical 'fixer' or critic
|
| Sanderson | | A nervous batsman
|
| Satterthwaite, Mr | Life with Freddie | A solicitor
|
| Saunders | A Gentleman of Leisure | Butler at Dreever Castle
|
| Saunders | | Professional cricketer, coached the Jackson brothers
|
| Saunders | The Pothunters | A gamekeeper
|
| Saunders, Ellen | | Joan Romney's maid
|
| Saxby, Howard (Senior) | Cocktail Time | An elderly literary agent; eccentric
|
| Saxby, Howard (Junior) | | A literary agent, son of Howard senior
|
| Scarborough, Mr | Frozen Assets | Representative of the Brothers Cohen
|
| Schnellenhamer, Jacob Z. | | Head of Perfecto-Zizzbaum Motion Picture Corp.
|
| Schnellenhamer, Mrs | The Rise of Minna Nordstrom | Jacob's wife
|
| Schoenstein, Lee | The Adventures of Sally | Master of Ceremonies at 'The Flower Garden'
|
| Schoonmaker, Lady Constance | | One of Lord Emsworth's sisters
|
| Schoonmaker, James | Service with a Smile | A wealthy American businessman
|
| Schoonmaker, Myra | Service with a Smile | James' daughter
|
| Scobell, Benjamin | | A millionaire financier
|
| Scobell, Marion | | Benjamin Scobell's sister
|
| Scollop, Rodney | The Story of Webster | The powerful young surrealist
|
| Scott, J. G. | | Boy at St. Austin's College
|
| Scott, Molly | Playing the Game | William Scott's sister
|
| Scott, William | | Boy at St. Austin's College
|
| Scrope, Crispin | The Girl in Blue | Owner of Mellingham Hall
|
| Scrope, Willoughby | The Girl in Blue | His brother, a solicitor
|
| Seabury (Chuffnell) | Thank You, Jeeves | Son of Lady Chuffnell
|
| Seacliff, Lord 'Squiffy' | The Indiscretions of Archie | Sent to New York to dry out under Prohibition
|
| Selby, Ann | The Test Case | A girl who wavers
|
| Selby, Major Christopher | Jill the Reckless | Jill Mariner's uncle and trustee
|
| Sellers, Reginald | The Man Upstairs | A patronizing painter
|
| Selwicke | The Last Place | Boy at Wrykyn College
|
| Seppings | | Butler to Tom and Dahlia Travers
|
| Serena | Another Christmas Carol | A rich aunt of Egbert Mulliner
|
| Seymour, Mr | | House and Lower Fifth master at Wrykyn College
|
| Seymour, Reginald | Author! | Substitute maths teacher at St. Austin's College
|
| Shanklyn, Percy | The Coming of Bill | Perpetually resting English actor
|
| Shannon, Kay | The Old Reliable | Bill Shannon's niece
|
| Shannon, Wilhelmina 'Bill' | The Old Reliable | Adela Cork's sister; a writer
|
| Sharpe | Mike and Psmith | Boy at Sedleigh College
|
| Sharples | The Lost Bowlers | Bowler with the Weary Willies
|
| Sharples, Miss | Spring Fever | G Ellery Cobbold's secretary
|
| Shawyer | The Tabby Terror | Boy at St. Austin's College
|
| Shearne, Isabel and J. K. | The Guardian | Parents of Thomas Shearne
|
| Shearne, P. W. | The Guardian | Brother of Thomas Shearne
|
| Shearne, Thomas B. A. | The Guardian | Boy at Eckleton College; wants his head smacked badly
|
| Sheen, R. D. | The White Feather | Boy at Wrykyn College
|
| Sheppley, Mrs | Summer Moonshine | A paying guest at Walsingford Hall
|
| Sheppherd, Audrey | Pots O'Money | A loyal girl who telephones daily
|
| Sheppherd, Mr | Pots O'Money | Audrey's father
|
| Shepperson, Mr | Money in the Bank | Guest at Shipley Hall
|
| Sheridan, Audrey | The Little Nugget | Works for Mr Ford
|
| Sheridan, Felicia 'Flick' | Bill the Conqueror | A young woman, in love with Bill West
|
| Sheriff, Roscoe | | A press and publicity agent
|
| Shields, Mr | Mike at Wrykyn | Master at Wrykyn College
|
| Shipton-Bellinger, Lady Millicent | The Smile That Wins | Younger daughter of Lord Brangbolton
|
| Shoesmith, Jerry | Frozen Assets | Editor of Society Spice
|
| Shoesmith, Mr | | A solicitor and father of Myrtle
|
| Shoesmith, Myrtle | | A young woman
|
| Shortlands, Lord | Spring Fever | 5th Earl of Shortlands, of Beevor Castle
|
| Shotter, Sam | Sam the Sudden | An impulsive young man
|
| Shute, Clarence 'Skipper' | When Doctors Disagree | A professional boxer
|
| Sibley, Constable | The Fifteenth Man | A village policeman
|
| Sidcup, Lord | | Previously Roderick Spode
|
| Sigsbee | Archibald's Benefit | A golfer
|
| Silver, Betty | | A young woman
|
| Silver, Billy | The Head of Kay's | Boy at Eckleton College
|
| Silvers, Mrs Ed | Fate | A New York woman
|
| Silver, James | The Head of Kay's | Boy at Eckleton College
|
| Silversmith, Charles | The Mating Season | Butler at Deverill Hall
|
| Silverton, Vera | The Indiscretions of Archie | A bulldog owning actress
|
| Simmonds | Bill the Bloodhound | A detective
|
| Simmons | The Indiscretions of Archie | Floor waiter at Hotel Cosmopolis
|
| Simmons | Something Squishy | Butler at Skeldings Hall
|
| Simmons, G. C. | Right Ho, Jeeves | Boy at Market Snodsbury Grammar School
|
| Simmons, Monica | | One of the Empress of Blandings' carers
|
| Simmons, Susan | Leave it to Psmith | Private detective working undercover
|
| Simms, Ernest | The Girl in Blue | Policeman in Mellingham-in-the-Vale
|
| Simpson | Something Fresh | Alias of Joan Valentine while working as a lady's maid
|
| Simpson, Billy | The Wire_Pullers | A young man
|
| Sipperley, Oliver | | An editor, much brow-beaten
|
| Sipperley, Vera | Without the Option | Oliver's aunt
|
| Skidmore | Something Fishy | Butler at Shipley Hall
|
| Skinner | Piccadilly Jim | Name used by Bingley Crocker while working as a butler
|
| Slattery, Soup | Hot Water | An expert safe-blower; not-so-expert stick-up man
|
| Sleddon | Sam the Sudden | Butler to Willoughby Braddock
|
| Slingsby, Alexander | The Spot of Art | Slingsby's Superb Soups
|
| Slingsby, Beatrice | The Spot of Art | Alexander's wife
|
| Slingsby, Theodore | If I Were You | Butler to the Earl of Droitwich
|
| Slingsby, Wilfred | Bill the Conqueror | Manager, London branch of the Paradene Pulp and Paper Co
|
| Sloper | The Luck Stone | Boy at Marleigh school; Binns singing partner
|
| Smethurst, Adeline | The Clicking of Cuthbert | A cultured young woman
|
| Smethurst, R. V. | Right Ho, Jeeves | Boy at Market Snodsbury Grammar School
|
| Smethurst, Mrs Willoughby | The Clicking of Cuthbert | Emily, a woman of culture
|
| Smith | Blenkinsop's Benefit | Boy in Jepson's House at Beckford College
|
| Smith | | Boy in Prater's House at St. Austin's College
|
| Smith | The Adventure of the Split Infinitive | Headmaster at St. Asterisk's
|
| Smith | The Little Nugget | Valet to Peter Burns
|
| Smith, Cyril | Gala Night | A policeman
|
| Smith, Henry | Bill the Conqueror | Office boy at Paradene Pulp and Paper
|
| Smith, John | The Indiscretions of Archie | The 'Sausage Chappie'
|
| Smith, Montgomery 'Smithy' | Do Butlers Burgle Banks? | A crook
|
| Smith, Mr | Psmith in the City | Rupert Psmith's father
|
| Smith, Rupert | | A journalist
|
| Smith, Sally | | A doctor
|
| Smithers | Pig-hoo-o-o-o-ey! | A veterinary surgeon in Market Blandings
|
| Smythe | How Pillingshot Scored | Boy at St. Austin's College
|
| Snettisham, Lord Jack | The Love that Purifies | Guest of Dahlia Travers
|
| Snettisham, Lady Jane | The Love that Purifies | Guest of Dahlia Travers; a sporting lady
|
| Snyder, Paul | Death at the Excelsior | Head of a detective agency
|
| Somerset, Miss | Sundered Hearts | Amateur Open Champion
|
| Sommerville, Marjorie | Cupid and the Paint-Brush | A young lady who paints
|
| Spelvin, Anastatia | | Rodney's wife, a good golfer
|
| Spelvin, Rodney | | A poet and a cad
|
| Spelvin, Timothy | Rodney has a Relapse | Rodney's young son
|
| Spence, Mabel | The Luck of the Bodkins | An American osteopath
|
| Spence, Mr | | Master at Wrykyn College
|
| Spencer, C. F. | | Boy at Eckleton College
|
| Spencer, Clay | Wilton's Holiday | A tell-tale
|
| Spenlow | The Politeness of Princes | Boy at Wrykyn College
|
| Spenlow, George | Birth of a Salesman | An entertainer of blondes, in his wife's absence
|
| Spenser, Lionel | Frozen Assets | Office boy at the Argus Enquiry Agency
|
| Spettisbury, Geraldine | The Luck of the Stiffhams | The Earl of Wivelscombe's daughter
|
| Spiller | Mike and Psmith | Boy at Sedleigh College
|
| Spiller | The Prince and Betty (US) | Employee of Westley, Martin & Co
|
| Spinder, Mr | The Luck Stone | A stand-in master at Marleigh school
|
| Spink, Mervyn | Spring Fever | Butler to Lord Shortlands
|
| Spode, Sir Roderick | | Leader of the Black Shorts
|
| Spottsworth, Cora McGuffy | Feet of Clay | Widow and writer
|
| Spottsworth, Rosalinda | | A very wealthy American, into psychical research
|
| Sprockett, Lulabelle | Feet of Clay | Heiress to Sprockett's Superfine Sardines
|
| Sprockett-Sprockett, Annabelle | The Fiery Wooing of Mordred | A young woman
|
| Sprockett-Sprockett, Aurelia | The Fiery Wooing of Mordred | Annabelle's mother
|
| Sprockett-Sprockett, Sir Murgatroyd | The Fiery Wooing of Mordred | Annabelle's father
|
| Spurgeon, Dora | All's Well with Bingo | Friend of Rosie M. Banks
|
| Stafford, Mr | Bill the Bloodhound | Proprietor of a detective agency
|
| Staniforth | The Right Approach | A butler in Wimbledon Common
|
| Stanning | The White Feather | Boy at Wrykyn College
|
| Stanworth | Educating Aubrey | Boy at Wrykyn College
|
| Starr, Cora | The Mating Season | Stage name of Cora Pirbright
|
| Stauffacher, Werner | William Tell Told Again | A prominent Swiss
|
| Steggles | The Inimitable Jeeves | An amateur and crooked bookmaker
|
| Steingruber, Herr | The Luck Stone | German master at Marleigh school; keen cellist
|
| Steptoe, Howard | Quick Service | An American in England
|
| Steptoe, Mabel | Quick Service | Howard's wife, with society aspirations
|
| Stern, Miss | The Castaways | Secretary to Mr Schnellenhamer
|
| Stewart, Colonel | The Luck Stone | Of the Indian Army
|
| Stewart, Jimmy | The Luck Stone | Boy at Marleigh school, custodian of the Luck Stone
|
| Stickney, J. Wendell | Company for Henry | A collector of paperweights
|
| Stickney, Kelly | Company for Henry | Wendell's aunt
|
| Stiffham, Adolphus 'Stiffy' | The Luck of the Stiffhams | A young man
|
| Stocker, Joe | Rodney has a Relapse | Golfer and ex-wrestler, suffers from hayfever
|
| Stoker, Dwight | Thank You, Jeeves | A solemn child, son of J. W. Stoker
|
| Stoker, Emerald | Stiff Upper Lip, Jeeves | Younger daughter of J. W. Stoker
|
| Stoker, George | Thank You, Jeeves | Deceased uncle of J. W. Stoker
|
| Stoker, J. Washburn | Thank You, Jeeves | J. W., a wealthy American
|
| Stoker, Oswald | | Novelist and / or music publisher
|
| Stoker, Pauline | Thank You, Jeeves | Elder daughter of J. W. Stoker
|
| Stokes | | Footman at Blandings Castle
|
| Stokes, Major Percy | Keeping It From Harold | Of the Salvation Army
|
| Stone, W. J. | | Boy at Sedleigh College
|
| Stortford, Bishop of | | Boko the Bishop (surname Bickerton)
|
| Stottlemeyer, Duane | The Girl in Blue | A junior manager at a department store
|
| Stout, Horace | Ukridge Starts a Bank Account | An ex-butler
|
| Stout, Percy | Ukridge Starts a Bank Account | Horace's brother, an ex-bookie
|
| Strachan | The Last Place | Boy at Wrykyn College
|
| Straker | A Slice of Life | Alias of Wilfred Mulliner, acting as a valet
|
| Stretchley-Budd, Hilda | Right Ho, Jeeves | Of Kingham Manor, friend of Angela Travers
|
| Stryker, Prudence | Bill the Conqueror | Ex-Follies actress, now at the Alhambra
|
| Stubbs, Bella | Uncle Dynamite | Sister of Constable Potter, Ashenden Oakshott
|
| Stubbs, Maudie | Pigs Have Wings | Ex barmaid, now a detective
|
| Stubbs, May | The Small Bachelor | A fortune teller from Idaho
|
| Sturgis | Money for Nothing | Butler at Rudge Hall
|
| Sturgis, Denman | Rallying Round Old George | A private detective
|
| Sturgis, Mortimer | | A golfer
|
| Sturgis, Mr | Piccadilly Jim | Prop. International Detective Agency)
|
| Stuttering Sam | Buttercup Day | A crook
|
| Sutton | A Gentleman of Leisure | Of the Majestic Theatre, New York
|
| Svenson, Oscar | The Girl on the Boat | A soggy swimming Swedish-American
|
| Swift | The Pothunters | Boy at St. Austin's College
|
| Swordfish | Jeeves in the Offing | Alias of Sir Roderick Glossop, posing as a butler
|
| Szabo, Ilona | The Play's the Thing | A prima donna
|
