| Issue | #52 |
| Published | April 1964 |
| Frequency | monthly |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Notes | Distributed to newstands in January 1964. This issue includes 10 pages of paid advertisements. Distribution date from Joseph Marek's Marvel Comics Group history website. |
| Characters | Iron Man [Tony Stark]; Crimson Dynamo [Boris Turgenev]; Black Widow [Natasha Romanoff] |
| Genre | superhero |
| Pencils | Jack Kirby |
| Inks | Paul Reinman |
| Letters | Artie Simek |
| Notes | Inks credit from Nick Caputo via the GCD Error List (30 August 2006); the original indexer credited George Roussos. Letters credit from George Olshevsky's Marvel Comics Index. |
| Reprinted | in Essential Iron Man (Marvel, 2000 series) #1 (2000) [black and white]; in Marvel Masterworks: The Invincible Iron Man (Marvel, 2003 series) #2 (2004); in Iron Man Omnibus (Marvel, 2008 series) #1 (2008); in Women of Marvel: Celebrating Seven Decades Magazine (Marvel, 2010 series) #1 (June 2010) |
| Characters | Iron Man [Tony Stark]; Crimson Dynamo [Boris Turgenev] (introduction); Black Widow [Natasha Romanoff] (introduction); Dr. Anton Vanko; Pepper Potts; Happy Hogan |
| Synopsis | The Black Widow and Boris are sent to America to kill Anton Vanko, the Crimson Dynamo, for defecting to America. They are also tasked with killing both Iron Man and Tony Stark. |
| Genre | superhero |
| Script | Stan Lee (plot); Don Rico [as N. Korok] (script) |
| Pencils | Don Heck |
| Inks | Don Heck |
| Letters | Sam Rosen |
| Reprinted | in Marvel Collectors' Item Classics (Marvel, 1965 series) #12; In Essential Iron Man (Marvel, 2000 series) #1; in Women of Marvel: Celebrating Seven Decades Magazine (Marvel, 2010 series) #1 |
| Characters | Howard; Uncle Bart |
| Synopsis | A TV studio page and aspiring magician gets a lucky break when he meets a real sorcerer time traveling from the past. |
| Genre | occult |
| Letters | typeset |
| Notes | Continues in next issue. |
| Reprinted | from Uncanny Tales (Marvel, 1952 series) #34 (August 1955) [page 1] |
| Characters | Great Kamir; Hugo; Mrs. Wentworth |
| Synopsis | A fake medium uses special effects to simulate supernatural powers, but he is taken into the spirit world by real ghosts as punishment. |
| Genre | occult |
| Script | Stan Lee (plot); Larry Lieber (script) |
| Pencils | Larry Lieber |
| Inks | Chic Stone |
| Letters | Ray Holloway |
| Pencils | Jack Kirby (original covers) |
| Notes | Advertises Avengers (Marvel, 1963 series) #4 (March 1964) and X-Men (Marvel, 1963 series) #4 (March 1964). This shares a page with the statement of ownership. |
| Letters | typeset |
| Notes | Average monthly paid circulation/print run October 1962–September 1963 (issues #37–48): 188,245/318,952. Paid circulation/print run for issue #48: 189,110/315,053. This shares the page with the promo. |
| Characters | Watcher [Uatu] (narrator); Kenn Bentley; Valeria Reynolds |
| Synopsis | The Earth of the future is overwhelmingly materialistic, except for one idealistic young man and his lover. They are abducted by aliens, who have determined that he is the best suited to be absolute ruler of their empire. |
| Genre | science fiction |
| Script | Stan Lee (plot); Larry Lieber (script) |
| Pencils | Larry Lieber |
| Inks | Paul Reinman |
| Letters | Sam Rosen |
| Notes | This is the last general science fiction story narrated by the Watcher in Tales of Suspense, future issues feature stories about the Watcher himself. |
| Reprinted | in Marvel Collectors' Item Classics (Marvel, 1965 series) #13 (February 1968); in Fantastici Quattro, I (Editoriale Corno, 1971 series) #55 (May 15, 1973) [as "Il fallimento", Italian translation] |