| Issue | #129 |
| Published | May 1966 |
| Cover Price | 0.25 USD |
| Pages | 84 |
| Editing | Mort Weisinger; E. Nelson Bridwell (assistant) |
| Notes | On Sale Date - March 10th 1966 also 80 Page Giant G-22 |
| Characters | Superboy; Mon-El; Ma Kent; Pa Kent; Dworn; Vidal; Zar-Al |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | George Klein |
| Characters | Superboy [Kal-El]; Mon-El [also as Bob Cobb]; Martha Kent; Jonathan Kent; Krypto (cameo); Jor-El (flashback); Lara (flashback) |
| Synopsis | When a space ship crashes outside Smallville, Superboy finds an amnesiac super-powered youth who might be his older brother. He christens him Mon-El and sets him up with a secret identity, but he soon finds evidence that Mon-El is not in fact Kryptonian. |
| Genre | superhero |
| Script | Robert Bernstein |
| Pencils | George Papp |
| Inks | George Papp |
| Letters | Joe Letterese |
| Notes | refried from "Superman's Big Brother" in Superman #80 |
| Reprinted | from Superboy (DC, 1949 series) #89 (June 1961) |
| Characters | Superboy; Mon-El [Bob Cobb] (origin); Martha Kent; Jonathan Kent; Lana Lang; Miss Joyce; King Mycerinua; Rhodopis; Jor-El (flashback); Lara (flashback); Phantom Zone |
| Synopsis | Trying to prove Mon-El isn't actually Kryptonian, Superboy accidentally exposes him to lead, which both poisons him and returns his memory. He remembers that he is a space explorer from Daxam who visited Krypton, meeting Jor-El and Lara, before arriving on Earth. To save his life, Superboy sends Mon-El into the Phantom Zone until he can cure him of his lead poisoning. |
| Genre | superhero |
| Script | Robert Bernstein |
| Pencils | George Papp |
| Inks | George Papp |
| Letters | Joe Letterese |
| Reprinted | from Superboy (DC, 1949 series) #89 (June 1961) |
| Script | E. Nelson Bridwell |
| Letters | typeset |
| Notes | This is the 1st time that Mon-El's real name, Lar Gand is used. |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Characters | Superboy; Martha Kent; Jonathan Kent; Vidal; Lana Lang |
| Synopsis | Vidal, a Superboy from another planet, takes Superboy's place on Earth while he's away on a space mission. |
| Genre | superhero |
| Script | Jerry Coleman |
| Pencils | John Sikela |
| Inks | John Sikela |
| Notes | Writer id by Martin O'Hearn. Mistakenly included on Otto Binder's list of stories. |
| Reprinted | from Adventure Comics (DC, 1938 series) #260 (May 1959) |
| Synopsis | How to treat frostbite, a black eye, and does cutting your hair make it grow faster? |
| Genre | Fact |
| Script | Jack Schiff |
| Pencils | Sheldon Moldoff |
| Inks | Sheldon Moldoff |
| Letters | Ira Schnapp |
| Reprinted | from ? [11/62 titles] |
| Characters | Superboy [Clark Kent]; Dworn; Jonathan Kent; Martha Kent; Lana Lang |
| Synopsis | Space traveller Dworn is a super weakling under Earth's gravity, however, his power to transmute any element into gold means he is a target for criminals |
| Genre | superhero |
| Script | Jerry Coleman |
| Pencils | George Papp |
| Inks | George Papp |
| Reprinted | from Superboy (DC 1949 series) #65 (June, 1958) |
| Characters | Superboy [Clark Kent]; Clark Kent robot; Jonathan Kent; Martha Kent; Lana Lang; Mrs Lang |
| Synopsis | Superboy has amnesia and moves into Lana's house. |
| Genre | superhero |
| Script | Jerry Coleman |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Reprinted | from Superboy (DC, 1949 series) #63 (Mar 1958) |
| Genre | superhero |
| Script | E. Nelson Bridwell |
| Letters | typeset |
| Reprinted | in Superboy (DC, 1949 series) #165 |
| Characters | Superboy [Clark Kent]; Krypton Kid [Zar-Al]; Martha Kent; Jonathan Kent; Lana Lang; Jor-El (flashback); Lara (flashback) |
| Synopsis | Zar-Al arrives from the past where he explains that he is on a mission to save Krypton, although his mission fails, he still returns to old Krypton to meet his fate. |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Reprinted | from Adventure Comics (DC, 1938 series) #242 (November 1957) |
| Characters | Superboy; Supergirl; Krypto; Martha Kent; Jonathan Kent; Linda Lee robot; kryptonite; Lana Lang |
| Synopsis | Supergirl flies to Superboy's time to see if she can protect her identity and prove to Superman she's ready to be revealed to the world. |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | Al Plastino |
| Inks | Al Plastino |
| Reprinted | from Adventure Comics (DC, 1938 series) #278 (November 1960) |