| Series | | Books |
| Hillary Brand |
| |
| Non-Spy Series | | News Girl (1963) |
| | | Brand T (1964) |
| |
| Ace Capelli |
| |
| Non-Spy Series | | Chicago Payoff (1949) |
| | | Death At Every Door (1949) |
| | | Give Me Headquarters (1949) |
| | | This Man Is Death (1949) |
| | | Never Turn Your Back (1950) |
| |
| Mark Clinton |
| |
| Non-Spy Series | | Oh! Hugh Pecker [Hugh Pecker] (1973) |
| | | Come Again Pecker [Hugh Pecker] (1973) |
| |
| Stephen Frances |
| |
| John Gail | | (1965) |
| | | (1966) |
| | | (1966) |
| | | (1968) |
| | | (1968) |
| | | (1968) |
| | | (1971) |
| |
| Non-Spy Series | | No Flowers For The Dead aka The Unlucky Break (1951) |
| | | Day of Terror (1962) |
| | | Bad Boy (1964) |
| | | The Day the Island Almost Sank (novelization) (1964) |
| |
| Johnny Grecco |
| |
| Non-Spy Series | | Call Her Savage aka Lady Take The Chair (1953) |
| |
| Hank Janson |
| |
| Non-Spy Series | | When Dames Get Tough (1946) |
| | | Scarred Faces (1946) |
| | | Lady, Mind That Corpse (1948) |
| | | Gun Moll for Hire (1948) |
| | | Smart Girls Don’t Talk (1949) |
| | | Slay-Ride for Cutie (1949) |
| | | Gunsmoke in Her Eyes (1949) |
| | | Lilies for My Lovely (1949) |
| | | Honey, Take My Gun (1949) |
| | | Blonde on the Spot (1949) |
| | | Sweetheart, Here’s Your Grave! (1949) |
| | | Angel, Shoot to Kill (1949) |
| | | The Jane with Green Eyes (1950) |
| | | The Lady Has a Scar (1950) |
| | | The Bride Wore Weeds (1950) |
| | | Don’t Dare Me, Sugar (1950) |
| | | It’s Always Eve That Weeps (1951) |
| | | Hotsy, You’ll Be Chilled (1951) |
| | | Milady Took the Rap (1951) |
| | | Death Wore a Petticoat (1951) |
| | | Don’t Mourn Me, Toots (1951) |
| | | Baby, Don’t Dare Squeal (1951) |
| | | Broads Don’t Scare Easy (1951) |
| | | Tension (1952) |
| | | Conflict (1952) |
| | | Accused (1952) |
| | | Kill Her If You Can (1952) |
| | | Killer (1952) |
| | | The Filly Wore a Rod (1952) |
| | | Whiplash (1952) |
| | | Suspense (1952) |
| | | Auctioned (1952) |
| | | Nyloned Avenger (1953) |
| | | Persian Pride (1953) |
| | | Torment (1953) |
| | | Amok (1953) |
| | | Silken Menace (1953) |
| | | Desert Fury (1953) |
| | | Corruption (1953) |
| | | One Man in His Time (1953) |
| | | Deadly Mission (1953) |
| | | Menace (1955) |
| | | Untamed (1955) |
| | | Framed (1955) |
| | | 48 Hours (1955) |
| | | Contraband (1955) |
| | | Bring Me Sorrow (1956) |
| | | Escape (1956) |
| | | The Big Lie (1956) |
| | | Devil’s Highway (1956) |
| | | Cactus (1956) |
| | | Strange Destiny (1956) |
| | | Don’t Cry Now (1957) |
| | | Enemy of Men (1957) |
| | | Bewitched (1957) |
| | | Revolt (1957) |
| | | Hellcat (1957) |
| | | Too Soon to Die (1958) |
| | | Mistress of Fear (1958) |
| | | Sugar and Vice (1958) |
| | | Kill This Man (1958) |
| | | Jack Spot (1958) |
| | | Avenging Nymph (1958) |
| | | Flight from Fear (1958) |
| | | Hate (1958) |
| | | Bad Girl (1959) |
| | | Torrid Temptress (1959) |
| | | Wild Girl (1959) |
| | | Invasion (1959) |
| | | Come Quickly, Honey (1960) |
| | | This Hood for Hire (1960) |
| | | Beloved Traitor (1960) |
| | | Prey for a Newshawk (1961) |
| | | Delicious Danger (1961) |
| | | Suddenly It’s Sin (1961) |
| | | Downtown Doll (1961) |
| | | Rave for a Roughneck (1962) |
| | | Play It Quiet (1962) |
| | | Nymph in the Night (1962) |
| | | Hilary’s Terms (1963) |
| | | Brand Image (1963) |
| | | Second String (1963) |
| | | Cold Dead Coed (1964) |
| | | Fanny (1964) |
| | | Expectant Nymph (1964) |
| | | Exotic Seductress (1964) |
| | | Hell’s Angel (1964) |
| | | Becky (1965) |
| |
| Arthur Kirby |
| |
| Non-Spy Series | | High Summer Homicide [Sexton Blake] (1962) |
| |
| Duke Linton |
| |
| Non-Spy Series | | Bury Me Deep (1950) |
| | | Crazy to Kill aka Trouble With A Woman (1950) |
| | | Dames Die Too (1950) |
| | | Enough Rope aka Snatched (1950) |
| | | Five Days to Die (1950) |
| | | Kill and Desire aka Hounded (1950) |
| | | Lips of Death (1950) |
| | | Shrouds Are Cheap (1950) |
| | | Too Late for Death (1950) |
| |
| Steve Markham |
| |
| Non-Spy Series | | It's Not Easy To Die aka Protection Payoff (1949) |
| |
| Desmond Reid |
| |
| Non-Spy Series | | The Babcock Boys [Pinkerton Detective Agency] (1966) |
| | | The Deadlier of the Species [Sexton Blake] (1966) |
| | | Death Waits in Tucson [Pinkerton Detective Agency] (1966) |
| |
| David Roland |
| |
| Non-Spy Series | | Red Star Over London (1971) |
| |
| Peter Saxon |
| |
| Non-Spy Series | | The Disoriented Man aka Scream and Scream Again (1966) |
| |
| Link Shelton |
| |
| Non-Spy Series | | Dead Men Don't Love (1949) |
| |
| Dave Steel |
| |
| Non-Spy Series | | Lady Take the Chair (1949) |
| | | Beauty Found in a Grave (1952) |
| | | Lovely But Deadly (1952) |
| | | Too Tough for Death (1953) |
| | | You’ll Live to Talk (1953) |
| |
| Danny Stephens |
| |
| Non-Spy Series | | Not Everybody Died (1964) |
| |
| Richard Williams |
| |
| Non-Spy Series | | Vendetta! [Sexton Blake] (1961) |
| | | Somebody Wants Me Dead [Sexton Blake] (1962) |
| | | Torment Was A Redhead [Sexton Blake] (1962) |
| | | The Slaying of Julian Summers [Sexton Blake] (1963) |
| | | The Man With The Iron Chest [Sexton Blake] (1965) |
| | | The Sniper [Sexton Blake] (1965) |
| |