| # | Date | Cover | Sommaire | |
| 1 | 06/1984 | | 1/ <Untitled> — 22 pages
Mario Hernandez, Jaime Hernandez, Gilbert Hernandez / Mario Hernandez, Jaime Hernandez, Gilbert Hernandez / Mario Hernandez, Jaime Hernandez, Gilbert Hernandez ➜ Mister X — 09/1986 — Mister X 2/ Tales from Radiant City — 3 pages
Gilbert Hernandez / Gilbert Hernandez / Gilbert Hernandez
✗ inédit | |
| 2 | 08/1984 | | 1/ <Untitled> — 20 pages
Mario Hernandez, Jaime Hernandez, Gilbert Hernandez / Mario Hernandez, Jaime Hernandez, Gilbert Hernandez / Mario Hernandez, Jaime Hernandez, Gilbert Hernandez ➜ Mister X — 09/1986 — Mister X 2/ Tales from Somnopolis — 6 pages
Mario Hernandez / Gilbert Hernandez / Gilbert Hernandez
✗ inédit | |
| 3 | 12/1984 | | 1/ <Untitled> — 18 pages
Mario Hernandez, Jaime Hernandez, Gilbert Hernandez / Mario Hernandez, Jaime Hernandez, Gilbert Hernandez / Mario Hernandez, Jaime Hernandez, Gilbert Hernandez ➜ Mister X — 09/1986 — Mister X 2/ Tales from Somnopolis — 8 pages
Mario Hernandez, Gilbert Hernandez / Gilbert Hernandez / Gilbert Hernandez
✗ inédit | |
| 4 | 05/1985 | | <Untitled> — 22 pages
Mario Hernandez, Jaime Hernandez, Gilbert Hernandez / Mario Hernandez, Jaime Hernandez, Gilbert Hernandez / Mario Hernandez, Jaime Hernandez, Gilbert Hernandez ➜ Mister X — 09/1986 — Mister X | |
| 5 | 05/1985 | | The Bizarre Death of Walter Eichmann — 21 pages
Dean Motter, Ty Templeton / Klaus Schoenefeld / Ty Templeton
✗ inédit | |
| 6 | 12/1985 | | The Revenge of Zamora — 21 pages
Dean Motter / Seth / William Diamond
✗ inédit | |
| 7 | 02/1986 | | The Revenge of Zamora — 24 pages
Dean Motter / Seth / William Diamond
✗ inédit | |
| 8 | 10/1986 | | 1/ The Secret — 17 pages
Dean Motter / Seth / William Diamond
✗ inédit 2/ Tales from Somnopolis — 1 page
Rob Eggleton / Klaus Schoenefeld / Klaus Schoenefeld
✗ inédit | |
| 9 | 12/1986 | | The Secret — 22 pages
Dean Motter / Seth / Seth
✗ inédit | |
| 10 | 08/1987 | | 1/ Nightclubs and Daydreams — 17 pages
Dean Motter / Seth / Seth
✗ inédit 2/ Tales from Somnopolis - Hollow Man — 5 pages
Rob Eggleton / Paul Rivoche / Paul Rivoche
✗ inédit | |
| 11 | 11/1987 | | 1/ Nightclubs and Daydreams, Part Three — 18 pages
Dean Motter / Seth / Seth
✗ inédit 2/ Tales from Somnopolis — 3 pages
Dave McKean / Dave McKean / Dave McKean
✗ inédit | |
| 12 | 01/1988 | | Nightclubs and Daydreams, Part Four — 24 pages
Dean Motter / Seth / Seth
✗ inédit | |
| 13 | 06/1988 | | 1/ <pin-up> — 1 page
/ Michael Kaluta (as Michael Wm Kaluta) / Michael Kaluta (as Michael Wm Kaluta)
✗ inédit 2/ <untitled> — 11 pages
Dean Motter / Seth / Seth
✗ inédit 3/ <untitled> — 11 pages
Dean Motter / Seth / Seth
✗ inédit | |
| 14 | 08/1988 | | 1/ <untitled> — 26 pages
Dean Motter / Rodney Dunn / Rodney Dunn
✗ inédit 2/ Tales from Somnopolis - The Lure of the City — 3 pages
✗ inédit | |
| Trade Paperback 1 | 10/2004 | | Who Is Mr. X <R> | |
| Trade Paperback 2 | 12/2004 | | The Secret Life of Mr. X <R> | |
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