| 34 | 52 | Death of Persuader (Cole Parker); Origin of Zatanna |
| 34/NS | 52 | Death of Persuader (Cole Parker); Origin of Zatanna |
| 315 | Action Comics | 1st Appearance of Zigi and Zagi; Origin of Zigi and Zagi |
| 353 | Action Comics | Origin of Zha-Vam; Versus Zha-Vam |
| 11 | Astonishing Tales | Origin of Ka-Zar; Origin of Zabu |
| 11 | Astonishing Tales (UK Edition) | Origin of Ka-Zar; Origin of Zabu |
| 6 | Atomics, The | Origin of Zapman |
| 85 | Conan the Barbarian | Origin of Zula |
| 85 | Conan the Barbarian (UK Edition) | Origin of Zula |
| 5 | DC Special Blue Ribbon Digest | Reprints from Justice League of America #9 (Feb 1962), Green Lantern (2nd Series) #16 (Oct 1962), Strange Adventures #205 (Oct 1967), Teen Titans #22 (Jul-Aug 1969), and The Demon #1 (Aug-Sep 1972); Origin of Zatanna (Zatanna Zatara); Origin of Justice League of America; Origin of Demon (Etrigan); Origin of Green Lantern (Hal Jordan); Origin of Deadman (Boston Brand); Origin of Wonder Girl (Donna Troy); Secret Origins of Super-Heroes; Nov-Dec issue |
| 5/NS | DC Special Blue Ribbon Digest | Reprints from Justice League of America #9 (Feb 1962), Green Lantern (2nd Series) #16 (Oct 1962), Strange Adventures #205 (Oct 1967), Teen Titans #22 (Jul-Aug 1969), and The Demon #1 (Aug-Sep 1972); Origin of Deadman (Boston Brand); Origin of Demon (Etrigan); Origin of Green Lantern (Hal Jordan); Origin of Justice League of America; Origin of Wonder Girl (Donna Troy); Origin of Zatanna (Zatanna Zatara); Nov-Dec issue; Secret Origins of Super-Heroes |
| 48 | Defenders, The | Origin of Zodiac II |
| 48/A | Defenders, The | Origin of Zodiac II |
| 48/B | Defenders, The | Origin of Zodiac II |
| 49 | Defenders, The | Origin of Zodiac II; Peter Sanderson L.O.C. |
| 49/A | Defenders, The | Origin of Zodiac II; Peter Sanderson L.O.C. |
| 50 | Defenders, The | Origin of Zodiac II |
| 50/A | Defenders, The | Origin of Zodiac II |
| 48 | Defenders, The (UK Edition) | Origin of Zodiac II |
| 49 | Defenders, The (UK Edition) | Origin of Zodiac II; Peter Sanderson L.O.C. |
| 50 | Defenders, The (UK Edition) | Origin of Zodiac II |
| 9 | Dreadstar | Origin of Z |
| 196 | Flash (2nd Series) | Origin of Zoom; Versus Peek-A-Boo |
| 196/NS | Flash (2nd Series) | Origin of Zoom; Versus Peek-A-Boo |
| 197 | Flash (2nd Series) | 1st appearance of Zoom (Hunter Zolomon); 1st appearance of Ashley Zolomon; Origin of Zoom |
| 197/NS | Flash (2nd Series) | 1st appearance of Ashley Zolomon; 1st appearance of Zoom (Hunter Zolomon); Origin of Zoom |
| 77 | Ghost Rider (Vol. 1) | Origin of Centurius; Origin of Zarathos |
| 77/NS | Ghost Rider (Vol. 1) | Origin of Centurius; Origin of Zarathos |
| 9 | G.I. Joe: Frontline | Origin of Zanya |
| 10 | G.I. Joe: Frontline | Origin of Zanya |
| 4 | Hawkman (1st Series) | 1st Appearance of Zatanna; Origin of Zatanna; Guy H. Lillian L.O.C. |
| 4/A | Hawkman (1st Series) | 1st Appearance of Zatanna; Origin of Zatanna; Guy H. Lillian L.O.C. |
| 4 | Hokum & Hex | Death of Z-Man; Origin of Z-Man |
| 4/NS | Hokum & Hex | Death of Z-Man; Origin of Z-Man |
| 1 | Jungle Adventures (Skywald) | New story intro and origin of Zangar (Bob Gordon). Reprints material from White Princess of the Jungle (Avon, 1952) #3, and #2, and Jo-Jo Comics (Fox, 1948 series) #18,; New story intro and origin of Zangar (Bob Gordon). Reprints material from White Princess of the Jungle (Avon, 1952) #3, and #2, and Jo-Jo Comics (Fox, 1948 series) #18 |
| 77 | Master of Kung Fu | 1st Appearance of Zaran; Origin of Zaran |
| 77/NS | Master of Kung Fu | 1st Appearance of Zaran; Origin of Zaran |
| 77 | Master of Kung Fu (UK Edition) | 1st Appearance of Zaran; Origin of Zaran |
| 27 | Secret Origins (3rd Series) | Origin of Zatanna; Origin of Zatara |
| 27/NS | Secret Origins (3rd Series) | Origin of Zatanna; Origin of Zatara |
| 13 | Strange Academy | Origin of Zoe Laveau |
| 13/A | Strange Academy | Origin of Zoe Laveau |
| 13/B | Strange Academy | Origin of Zoe Laveau |
| 5 | Supergirl (1st Series) | Origin of Zatanna; Reprint from Hawkman #4, edited |
| 1 | Tales of the Zombie | Reprints from Menace #5, Journey into Mystery #1 and Chamber of Darkness #7; Origin of Zombie; Magazine; B&W |
| 26 | West Coast Avengers | Origin of Zodiac; Versus Zodiac |
| 26/NS | West Coast Avengers | Origin of Zodiac; Versus Zodiac |
| 17/CS | X-Force | Origin of Stryfe; Origin of Zero; Includes trading card; Includes Mr. Sinister trading card; Continued from X-Men #15; Continued in Uncanny X-Men #296 |
| 17/NS | X-Force | Origin of Stryfe; Origin of Zero; Continued from X-Men #15; Continued in Uncanny X-Men #296; Includes Mr. Sinister trading card; Includes trading card |
| 1 | Zen Intergalactic Ninja (5th Series) | Origin of Zen Intergalactic Ninja; Includes mini-poster |
| 1/A | Zen Intergalactic Ninja (5th Series) | Origin of Zen Intergalactic Ninja |
| 1/NS | Zen Intergalactic Ninja (5th Series) | Origin of Zen Intergalactic Ninja |
| 1 | Zorro (Marvel) | Origin of Zorro (Don Diego) |
| 1/NS | Zorro (Marvel) | Origin of Zorro (Don Diego) |
| 4 | Zot! | Origin of Zot! |