Taft, Willie: a former back-up singer and PI, in the South by Mary Saums

Talbot, Jeff: former FBI agent turned antique picker, in Seattle, Washington by Deborah Morgan

Leatitia Talbot: archeologist based in post-WWI France, by Barbara Cleverly

Tallon, Jack: by John Ball

Tamar, Hilary: medieval law professor in Oxford, England by Sarah Caudwell

Tanaka, Ken: computer programmer in Los Angeles, California by Dale Furutani

Tangent, Peter: troubleshooter for American oil company in Africa by Lawrence Sanders

Tanner, Bay: was a financial consultant before her husband died, in Hilton Head, South Carolina by Kathryn R. Wall

Tanner, Evan: government agent with permanent insomnia in the United States by Lawrence Block

Tanner, John Marshall: non-practicing attorney and private eye in San Francisco, California by Stephen Greenleaf

Tanner, Michael: a successful public relations executive in Seattle, Washington by Carl Brookins

Dick Tansey: Chief Inspector in the Thames Valley police, in England, by John Penn (Palma Harcourt & Jack H. Trotman)

Tartaglia, Nicholas: a private investigator in Spencerport, New York by Phillip Tomasso

Tasker, Bill: a special agent of the Department of Law Enforcement in Florida by James O. Born

Tate, Gerry: in public relations in London, England by Marian Babson

Tatum, Bill: former Army sniper and current Deputy Sheriff of Mineral County in Dumont, Colorado by Evan McNamara

Tatum, Nan & Bert: identical twins in Louisville, Kentucky by Barbara Taylor McCafferty

Tay-bodal: 19th century Kiowa healer in Oklahoma by Mardi Oakley Medawar

Taylor, Fred: an art historian in Boston, Massachusetts by Nicholas Kilmer

Taylor, Holland: an ex-cop turned private investigator in St. Paul, Minnesota by David Housewright

Jack Taylor: dismissed from the Garda Síochána (Irish police) for drinking, now finding things for people in Galway, Ireland, since “private eye” sounds too much like “informer” to the Irish, by Ken Bruen

Mitch Taylor, Commander Bill Decker, and Jub Freeman, police detectives in New York City, by Lawrence Treat

Morgan Taylor: struggling actress in Chicago, Illinois, and on a Caribbean cruise ship, by Susan Sussman & Sarajane Avidon

Teagarden, Aurora: librarian turned real estate agent in Lawrenceton, Georgia by Charlaine Harris

Teague, Kate: a history teacher in California by Wendy Hornsby

Teague, Sydney: advertising agency owner in Charlotte, North Carolina by Anne Underwood Grant

Templar, Simon “The Saint”: an international thief, millionaire, and master of disguise by Burl Barer

Templar, Simon “The Saint”: an international thief, millionaire, and master of disguise created by Leslie Charteris

Temple, Paul: a crime writer turned private investigator in London, England by Francis Durbridge

Temple, Rebecca: a family practice physician in Toronto, Ontario, Canada by Sylvia Maultash Warsh

Tennison, Jane: detective chief inspector in England by Lynda La Plante

Tepper, Sally: unemployed actress with five dogs in New York, New York by Lydia Adamson

Terrell, Frank by James Hadley Chase

Terry, Inspector Frederick: a detective in London, England by Christine Spindler

Tewes, Jane Francis: a doctor in the 1890s in Chicago, Illinois by Robert W. Walker

Mr. Tewkesbury: in England, by Henry Cecil

Thackeray, Edward: Victorian policemen in London, England by Peter Lovesey

Thackeray, Michael: police inspector in Yorkshire, England by Patricia Hall

Thane, Colin: a Scottish Crime Squad officer in Glasgow, Scotland by Bill Knox

Thanet, Luke: police inspector in Sturrenden, England by Dorothy Simpson

Thatcher, John Putnam: financial whiz on Wall Street in New York, New York by Emma Lathen

Theobald, Kate: a reporter by Lionel Black

Theron, Thomas: a history professor in Boston, Massachusetts by Robert Reeves

Dexter J. Theroux: private eye. and his secretary , Kitty Pangborn, in 1930s Los Angeles, California, by Linda L. Richards

Thinnes, John: a cop in Chicago, Illinois by Michael Allen Dymmoch

Jane Thistle, a British lady, and Phoebe Twigg, a Southern lady, both widows in their 60s, in Tullulah, Alabama, by Mary Saums

Thomas, Cindy: reporter,  a founding member of The Women's Murder Club in San Francisco, California  by James Patterson

Clyde Thomas: the first black deputy sheriff, and Jeremiah Spur, retired white Texas Ranger, in Brenham, Texas, by James Hime

Nick Thomas: Food Standards Agency inspector in England, and Josie Welford, the new owner of the White Hart Pub in Kings Duncombe, a West Country village, by Judith Cutler

Thompson, Hank: a former high school star baseball player, now a bartender with a drinking problem in Paul's Place, on the Lower East Side of Manhattan, New York by Charlie Huston

Thora Gudmundsdottir: lawyer in Reykjavik, Iceland, by Yrsa Sigurdardottir

Thorn: eco-avenger PI in Key Largo, Florida by James W. Hall

Thorn, Peter: an army colonel and counter-terrorism expert by Larry Bond

Thorndyke, Dr. John Evelyn: physician and barrister by R. Austin Freeman

George Thorne: Detective Superintendent in the Thames Valley police, in England, by John Penn (Palma Harcourt & Jack H. Trotman)

Thorne, Iris: an investment counselor in Los Angeles, California by Dianne G. Pugh

Thorne, Tom: a middle aged detective inspector in London, England by Mark Billingham

Thornhill, Richard: 1950s detective inspector in Lydmouth, England by Andrew Taylor

Thornton, Joshua: appointed special prosecutor for a case of double homicide in Chester, West Virginia by Lauren Carr

Maggy Thorsen: 40-something divorcée running a coffee shop, Uncommon Grounds, with two women friends in the small fictional town of Brookhills, Wisconsin, by Sandra Balzo

Thorssen, Alix: a gallery owner and art forgery expert, in Jackson Hole, Wyoming by Lise McClendon

Roger Thursby: in England, by Henry Cecil

Tibbett, Henry: Scotland Yard Inspector in London, England by Patricia Moyes

Tibbs, Virgil: a homicide detective in Pasadena, California by John Ball

Tillman, half of a pair turn-of-the-century policemen in New York, New York by William Marshall

Timberlake, Abigail: owner of the den of Antiquity in charlotte, North Carolina by Tamar Myers

Triptree, Jacobia: onetime financial advisor to the Mob, now living in Eastport, Maine by Sarah Graves

Michael Tiranno (The Tyrant): Mafia connected owner of the Seven Sins, a Los Vegas casino, by Jon Land

Titus, Nicky: photographer and wife, in Holton, Oklahoma by Eve K. Sandstrom

Titus, Sam: a sheriff in Holton, Oklahoma by Eve K. Sandstrom

Toadfern, Josie: a stain expert and laundromat owner in Paradise, Ohio by Sharon Short

Tobin: a hot-tempered movie critic in New York, New York by Ed Gorman

Yashim Togalu: eunuch for an Ottoman sultan, in 1830s Istanbul, Turkey, by Jason Goodwin

Tolliver, Ben: NYPD lieutenant in New York, New York by James Neal Harvey The Tonnemans: a family in Colonial New York (New Amsterdam), New York by Maan Meyers

Torry, Derek: cop thrillers by John Gardner

Aud Torvingen: half-American, half-Norwegian lesbian ex-Atlanta cop and self-defense teacher, by Nicola Griffith

Sara Townley: investigator for a law firm in Seattle, Washington, in the Animal Instinct mysteries by Gabriella Herkert

Townsend, C. J.: an  Assistant State Attorney  in Miami, Florida by Jilliane Hoffman

Townsend, Father Mark: a Jesuit priest in Washington State by Brad Reynolds

Toye, Gregory: a Scotland Yard detective in London, England by Elizabeth Lemarchand

Tozzi, Mike: FBI agent undercover with the Mob in New York, New York by Anthony Bruno

Tracer, John: a family-man sleuth in Monterey, California by Jeff Andrus

Train, Rick by Bruno Fischer

Tramwell, Hyacinth and Primrose: a pair of dotty sisters and owners of the Flowers Detection Agency in Chitterton Falls, England by Dorothy Cannell

Traveler, Moroni: non-Mormon ex-football player, private investigator in Salt Lake City, Utah by Robert Irvine

Travers, Nick: ex-football star, part-time detective and full-time expert on blues in New Orleans by Ace Atkins

Travers, Tory: engineer in El Paso, Texas by Aileen Schumacher

Anna Travis: rookie detective, in London, England, by Lynda La Plante

Travis, Melanie: a special education teacher who shows her standard poodles in dog shows, in Connecticut by Laurien Berenson

Travis, Mike: a newly retired cop, building a charter sailing business in Los Angeles, California by Baron R. Birtcher

Travis, Sheila: a publicist in Atlanta, Georgia by Patricia Houck Sprinkle

Treasure, Mark: a merchant banker in London, England by David Williams

Tregar, Jane: a corporate headhunter in Toronto, Ontario, Canada by Ellen Godfrey

Tregarde, Diana: investigator of unnatural event in Hartford, Connecticut by Mercedes Lackey

Treloar, Gabe:  a burned-out LAPD veteran on the way to a PI job in Cleveland, ends up in his old hometown, Monticello, Ohio by John Maddox Roberts

Trenka, Betty: a businesswoman in Connecticut, USA by Joyce Christmas

Trent, Philip: a journalist in London, England by E. C. Bentley

Tretheway, Albert V.: Inspector in 1940s Canadian police officers in Fort York, Ontario by A. E. Eddenden

Trethowan, Perry: Scotland Yard inspector in London, England by Robert Barnard

Trevellyan, Nick: detective inspector in Hop Valley, England by Susan B. Kelly

Trevelyan, Rose, painter and photographer in Cornwall, England by Janie Bolitho

Trevor, Carole: a private investigator by Judson Philips

Trevor, Hannah: a midwife in Rufford, Maine just after the Revolutionary War by Margaret Lawrence

Trevorne, Kate: an English professor in Michigan by Paula Gosling

Trewley, Detective Superintendent: a village detective in Allshire, England by Sarah Mason

Trumbull, Victoria: an astute 92-year old Vineyard native and deputy police officer, in Martha's Vineyard, Massachusetts by Cynthia Riggs

Tryon, Glynis: Librarian and suffragette in Seneca Falls, New York by Miriam Grace Monfredo

Jacob Tshabalala: detective inspector, in Johannesburg, South Africa, by Richard Kunzmann

Tucker, Aaron: a former investigative reporter and aspiring screenwriter, in New Jersey by Jeffrey Cohen

Alafair Tucker: matriarch of a large family in the early 1900s, in rural Oklahoma, by Donis Casey

Charity Tucker and Ben Shock, unlicensed private investigators in the 1970s, by Patrick Buchanan (Edwin Corley)

Tucker, Coleridge: part of a James Bond-like trio in London, England by Ivor Drummond

Tucker, Flap: a finder of lost things and a private investigator who uses meditation instead of a gun in Atlanta, Georgia by Phillip DePoy

Jasper Tully: DA investigator, and Mrs. Norris, Scottish housekeeper and amateur sleuth, in New York City, by Dorothy Salisbury Davis

Amy Tupper: amateur sleuth in London, England, by Josephine Bell

Tunet, Torrey: a 28 year old translator from Boston, Massachusetts by Dicey Deere

John Turner: ex-cop, ex-con, ex-psychotherapist, now deputy sheriff in Cripple Creek, Tennessee, by James Sallis

Turner, Paige: a mystery novelist and crime reporter, and a Korean War widow, in 1950s New York City by Amanda Matetsky

Turner, Paul: a gay police detective in Chicago, Illinois by Mark Richard Zubro

Turner, Peggy Jean: the mayor of the New England town of Cobb's Landing by Kate Borden

Turner, Sam: a private investigator in York, England by John Baker

Turner, Samantha: medical examiner in Sheridan, Wyoming by Marsha Landreth

Turnipseed, Anna: part Modoc and part Japanese, a FBI special agent in New Mexico by Kirk Mitchell

Twain, Mark: 19th century American author in North America by Peter J. Heck

Tweed: a British secret agent written as by Corbin Forbes

Phoebe Twigg, a Southern lady, and Jane Thistle, a British lady, both widows in their 60s, in Tullulah, Alabama, by Mary Saums

Twotoes, Tommy: by David Alexander

Tygart, Mary “Ike”: television news producer in New York, New York by Polly Whitney

Bonnie Lynn Tyler, Margaret Ann Matthews, and Lindsey Fox, cousins at Pinckney Plantation on fictional Indigo Island, South Carolina, by Caroline Cousins

Tyler, Morgan: a 30-year-old widow, the head writer of the daytime drama “Love of My Life” in New York, New York, by Linda Palmer

Tyree, Anna by Dave Pedneau

Chris Tyroll: off-beat anarchist lawyer who will defend anyone, in the West Midlands of England, by Barrie Roberts