Betancourt, John Gregory
Alphabetical Checklist
- Amazing Stories Book 5: Starskimmer (Windhaven, Wisconsin: TSR/Amazing Stories, 1986)
- Amazon Nights: Classic Adventure Tales from the Pulps (Holicong, Pennsylvania: Wildside Press, 2005) with Arthur O Friel and Darrell Schweitzer
- The Best of Weird Tales (New York: Barnes and Noble, 1995)
- The Best of Weird Tales: 1923 (Berkley Heights, New Jersey: Bleak House, 1997) with Marvin Kaye
- Birthright: The Hag's Contract (Windhaven, Wisconsin: TSR, 1996)
- The Blind Archer (New York: Avon Books, 1988)
- Born of Elven Blood (New York: Byron Preiss Visual Publications/Atheneum, 1995) with Kevin J Anderson
- The Cat Megapack: Frisky Feline Tales, Old and New (Rockville, Maryland: Wildside Press/Borgo Press, 2013) with Robert Reginald and Mary Wickizer Burgess
- The Christmas Megapack (Rockville, Maryland: Wildside Press/Borgo Press, 2012) with Robert Reginald and Mary Wickizer Burgess
- Cutthroat Island (New York: Tor/Forge Books, 1995)
- Dr Bones #4: The Dragons of Komako (New York: Byon Preiss Visual Publications/Ace Books, 1989)
- The Dragon Sorcerer (New York: iBooks, 2003)
- Encyclopedia of TV Science Fiction (London: Boxtree, 2000) with Roger Fulton
- Hercules: The Gates of Hades (New York: Tor, 2001)
- Hercules: The Vengeance of Hera (New York: Tor, 1997)
- Hercules: The Wrath of Poseidon (New York: Tor, 1997)
- Horror: The Best of the Year: 2006 Edition (Germantown, Maryland: Prime Books, 2006) with Sean Wallace
- Horrorscape 2: New Masterpieces of Horror (New York: ibooks, 2005)
- Horrorscape: New Masterpieces of Horror (New York: ibooks, 2005)
- Johnny Zed (New York: Popular Library, 1988)
- Letters of the Alien Publisher (Woburn, Massachusetts: First Books, 1991) with Charles C Ryan
- New Masterpieces of Horror (New York: Barnes and Noble, 1996)
- Pacifica (Holicong, Pennsylvania: Wildside Press, 2005) with Linda E Bushyager
- Performance Art (Holicong, Pennsylvania: Wildside Press, 1992)
- Playing in Wonderland (Holicong, Pennsylvania: Wildside Press, 1995)
- Rememory (New York: Popular Library, 1990)
- Robert Silverberg's Time Tours #6: Caesar's Time Legions (New York: HarperPaperbacks, 1991) as Jeremy Kingston
- Robert Silverberg's Time Tours #4: The Dinosaur Trackers (New York: HarperPaperbacks, 1991) with Arthur Byron Cover, and T R Sullivan, all as by Thomas Shadwell
- Roger Zelazny's Chaos and Amber: Book Two of the New Amber Trilogy (New York: iBooks, 2003)
- Roger Zelazny's Dawn of Amber: Book One of the New Amber Trilogy (New York: iBooks, 2002)
- Roger Zelazny's Shadows of Amber (New York: iBooks, 2005)
- Roger Zelazny's To Rule in Amber: Book Three of the New Amber Trilogy (New York: iBooks, 2004)
- Rogue Pirate (Lake Geneva, Wisconsin: Windwalker Books, 1987)
- The Sci-Fi Channel Encyclopedia of TV Science Fiction (New York: Aspect, 1998) with Roger Fulton
- The Sci-Fi Channel Trivia Book (New York: Boulevard Books, 1996)
- Serve It Forth – Cooking with Anne McCaffrey (New York: Warner/Aspect, 1996) with Anne McCaffrey
- Short Things: Tales Inspired by Who Goes There? by John W Campbell, Jr (Cabin John, Maryland: Wildside Press, 2019)
- Slab's Tavern and Other Uncanny Places (Buffalo, New York: W Paul Ganley, 1990)
- Star Trek: Deep Space Nine: Devil in the Sky (New York: Pocket Books, 1995) with Greg Cox
- Star Trek: Deep Space Nine: The Heart of the Warrior (New York: Pocket Books, 1996)
- Star Trek: The Next Generation: Infection: Double Helix: Book One of Six (New York: Pocket Books, 1999)
- Star Trek: Voyager: Incident at Arbuk (New York: Pocket Books, 1995)
- Swashbuckling Editor Stories (Holicong, Pennsylvania: Wildside Press, 1991)
- The Ultimate Alien (New York: Byron Preiss/Dell, 1995) with Byron Preiss
- The Ultimate Dracula (New York: Byron Preiss/Dell, 1991) uncredited, with Byron Preiss
- The Ultimate Dragon (New York: Byron Preiss/Dell, 1995) with Byron Preiss and Keith R A DeCandido
- The Ultimate Frankenstein (New York: Byron Preiss/Dell, 1991) with David Keller, Megan Miller and Byron Preiss
- The Ultimate Undead (New York: ibooks, 2006) with Byron Preiss
- The Ultimate Werewolf (New York: Byron Preiss/Dell, 1991) with David Keller, Megan Miller and Byron Preiss
- The Ultimate Witch (New York: Byron Preiss/Dell, 1993) with Byron Preiss
- The Ultimate Zombie (New York: Byron Preiss/Dell, 1993) with Byron Preiss
- Weird Tales: Seven Decades of Terror (New York: Barnes and Noble, 1997) with Robert Weinberg