| Issue | #1 |
| Published | [July] 1965 |
| Frequency | annually |
| Cover Price | 0.25 USD |
| Pages | 76 |
| Editing | Stan Lee |
| Notes | Distributed to newstands in July 1965 (at the same time as issues cover-dated September and October 1965). Distribution date from Joseph Marek's Marvel Comics Group history website. |
| Characters | Thor; Hercules; Loki; Radioactive Man [Chen Lu]; Duplicate Thor; Lava Man |
| Genre | Fantasy; superhero |
| Pencils | Jack Kirby |
| Inks | Vince Colletta |
| Notes | Cover also includes four reprint vignettes. |
| Reprinted | in Marvel Masterworks: The Mighty Thor (Marvel, 2003 series) #3 (2003); in Marvel Milestones: Venom & Hercules (Marvel, 2005 series) #[nn] (2005) [interior]; in Essential Thor (Marvel, 2001 series) #2 (2005) [black and white]; in Thor vs. Hercules (Marvel, 2010 series) #[nn] |
| Letters | typeset |
| Notes | inside front cover |
| Characters | Thor [Donald Blake]; Hercules [Alcaeus of Thebes] (introduction) Loki; Zeus (introduction); VILLAINS: Storm Giants |
| Synopsis | Thor and Loki come across a pair of storm giants attacking the gateway from Asgard to Olympus; During the ensuing battle, Thor is accidentally transported to the fabled land and finds himself in combat with the mighty Hercules with neither party willing to back down; After a titanic battle, Zeus stops the conflict and proclaims them both worthy allies and friends; Thor is sent back to Asgard and Zeus closes the passage forever. |
| Genre | Fantasy |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | Vince Colletta |
| Letters | Sam Rosen |
| Notes | This story introduced the Marvel Universe version of Olympus and the Greek gods. |
| Reprinted | in Mitico Thor, Il (Editoriale Corno, 1971 series) #21 (June 18, 1972) [as "Quando i Titani si scontrano", Italian translation]; in Giant-Size Thor (Marvel, 1975 series) #1 (1975); in Marvel Milestones: Venom & Hercules (Marvel, 2005 series) #nn (2005) [-2 pages]; in Marvel Masterworks: The Mighty Thor (Marvel, 2003 series) #3 (2003); in Essential Thor (Marvel, 2001 series) #2 (2005) [black and white]; in Thor vs. Hercules (Marvel, 2010 series) #[nn] |
| Genre | Fantasy |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Notes | A pin-up of a "typical Asgard street scene", majestic with monuments, temples and the like. |
| Reprinted | in Mighty Thor Collector's Album, The (Lancer, 1966 series) #72-125 (1966); in Marvel Treasury Edition (Marvel, 1974 series) #3 (1974); in Marvel Masterworks (Marvel, 1987 series) #18 (1991); in Mitico Thor, Il (Editoriale Corno, 1971 series) #22 (February 1, 1972); in Marvel Masterworks: The Mighty Thor (Marvel, 2003 series) #1 (2003); in Marvel Masterworks: The Mighty Thor (Marvel, 2003 series) #3 (2003); in Essential Thor (Marvel, 2001 series) #2 (2005) [black and white]; in Thor: Tales of Asgard (Marvel, 2009 series) #3 (September 2009) |
| Characters | Thor [Donald Blake]; Loki (introduction); Jane Foster; Heimdall (introduction, cameo); Odin (introduction, cameo); Balder (introduction, cameo); Tyr (introduction, cameo) |
| Synopsis | Loki escapes from his prison in Asgard and comes to Earth to get revenge on Thor. The trickster hypnotizes him to help make mischief, but Thor’s transformation into Donald Blake frees him from hypnosis, allowing him to defeat Loki and return him to Asgard. |
| Genre | Fantasy; superhero |
| Script | Stan Lee (plot); Larry Lieber (script) |
| Pencils | Jack Kirby |
| Inks | Dick Ayers |
| Letters | Artie Simek |
| Notes | This story is divided into two parts: an unmarked first part (5 pp) and part two—"The Vengeance of Loki!" (8 pp). This is the first appearance of Asgard. Balder, Tyr and Odin only appear from behind, and Heimdall looks nothing like his later appearances. |
| Reprinted | from Journey Into Mystery (Marvel, 1952 series) #85 (October 1962) |
| Notes | Advertises the thirteen ongoing books in Marvel's superhero, western and war lines. |
| Characters | Thor [Donald Blake]; Radio-Active Man [Chen Lu] (introduction, origin); Jane Foster; General Fu; Chairman Mao Zedong (cameo) |
| Synopsis | While on a medical mission to India, Dr. Blake becomes Thor to repel a Chinese attack. In order to fight Thor, a Chinese scientist irradiates himself to gain great power. He fights Thor in New York, and nearly defeats him, but Thor blows him back to China, creating a nuclear explosion. |
| Genre | superhero |
| Script | Stan Lee (plot); Robert Bernstein (script) [as R. Berns] |
| Pencils | Jack Kirby |
| Inks | Dick Ayers |
| Letters | Ray Holloway |
| Reprinted | from Journey Into Mystery (Marvel, 1952 series) #93 (June 1963) |
| Notes | Includes order forms for Marvel stationary and Thor t-shirts. |
| Characters | Thor [Donald Blake]; Duplicate Thor; Odin; Professor Zaxton (introduction, death); Jane Foster; Duplicate Professor Zaxton |
| Synopsis | An evil scientist forces Dr. Blake to help him with a duplicating machine by kidnapping Jane. The device duplicates Thor, but cannot duplicate his magic hammer, allowing Thor to defeat the duplicate. Dr. Zaxton accidentally duplicates himself and falls to his death, leaving his good duplicate to take his place. |
| Genre | superhero |
| Script | Stan Lee (plot); Robert Bernstein (script) [as R. Berns] |
| Pencils | Joe Sinnott |
| Inks | Joe Sinnott |
| Letters | Sam Rosen |
| Reprinted | from Journey Into Mystery (Marvel, 1952 series) #95 (August 1963) |
| Notes | Advertises Fantastic Four Annual (Marvel, 1963 series) #3 (1965), Sgt. Fury Annual (Marvel, 1965 series) #1 (1965), Amazing Spider-Man Annual (Marvel, 1964 series) #2 (1965) and Marvel Tales Annual (Marvel, 1964 series) #2 (1965). |
| Characters | Thor [Donald Blake]; Lava Man (introduction); Jane Foster; Odin; Loki; Dr. Bruce Andrews (introduction) |
| Synopsis | Thor battles the Lava Man, a monster created by Loki who claims all the dry surface of Earth for his people. Odin forbids Thor to love Jane Foster, leading to her leaving her job as Dr. Blake's nurse. |
| Genre | Fantasy; superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | Don Heck |
| Letters | Artie Simek |
| Notes | Dr. Andrews is first called Basil by Jane Foster on page 6 but then is called Bruce by Dr. Blake on the last page. |
| Reprinted | from Journey Into Mystery (Marvel, 1952 series) #97 (October 1963) |
| Letters | typeset |
| Notes | inside back cover |
| Letters | typeset |
| Notes | back cover |