| Thom Kallor | |
|---|---|
Thom Kallor as the new Starman, from the textless cover ofJustice Society of America #2 (March 2007). Art byAlex Ross. | |
| Publication information | |
| Publisher | DC Comics |
| First appearance | Adventure Comics #282 (March 1961) |
| Created by | Otto Binder George Papp |
| In-story information | |
| Alter ego | Thom Kallor |
| Species | Xanthuan |
| Place of origin | Xanthu (31st century) |
| Team affiliations | Legion of Super-Heroes Legion of Substitute Heroes Uncanny Amazers Justice Society of America Justice League |
| Notable aliases | Star Boy, Danny Blaine, Sir Prize, Starman |
| Abilities | Density manipulation Hand-to-hand combat |
Thom Kallor is a character appearing incomic books published byDC Comics, primarily as a member of theLegion of Super-Heroes. The character has also been known asStar Boy andStarman.[1]
Kallor as Star Boy has appeared in various media outside comics, primarily those featuring the Legion of Super-Heroes. He is voiced byBumper Robinson inLegion of Super Heroes (2006) andElyes Gabel inJustice League vs. the Fatal Five.
Thom Kallor first appeared inAdventure Comics #282 and was created byOtto Binder andGeorge Papp.[2]

Star Boy is a member of the Legion of Super-Heroes, a group of young heroes living a millennium in the future.[3] He was born to astronomer parents on an observation satellite orbiting the planet Xanthu, and is able to temporarily increase the mass of an object, up to the mass of a star. Although he temporarily acquiresKryptonian-level powers similar to those ofSuperboy after being caught in the tail of a comet, these eventually fade, leaving only his original density-increasing power. Early in his Legion career, he travels to the 20th century to meet Superboy. While he is there,Lana Lang threatens to expose his identity (a secret on Xanthu) if he refuses to pretend to be her boyfriend, to make Superboy jealous. However, the Boy of Steel overhears her and her plan fails.[4]
Star Boy is expelled from the Legion for killing his girlfriendDream Girl's ex-boyfriend Kenz Nuhor in self-defense, in violation of the Legion's rule against killing. After this, he and Dream Girl join theLegion of Substitute Heroes before returning to the Legion.[2] Although Star Boy originally wears a purple uniform with a white cape and five-pointed yellow star on his chest, his best-known costume is a full-body suit with a pattern resembling astarfield.
After the events ofZero Hour and the death ofKid Quantum (James Cullen), Xanthu's original representative to the Legion, Star Boy joins the Legion. He does not get along withLeviathan, partly because Leviathan blames himself for Kid Quantum's death and sees his replacement as a reminder of his failure as a leader.
When Xanthu leaves theUnited Planets, Star Boy and fellow Xanthian LegionnairesKid Quantum (Jazmin Cullen) andMonstress spread the word that the government of their home planet has been deceived and are astonished at the decision to remain with the Affiliated Planets.

Although Star Boy was originally depicted as a white Xanthian,Mark Waid's 2005 Legion reboot recasts the character as black. He is described asCosmic Boy's right-hand man, and remains loyal to him during the Legion until his disappearance at the end of theDominators storyline. This version of Star Boy (and his version of the Legion) inhabits Earth-Prime, the home of hero-turned-villainSuperboy-Prime.[5]
InJustice Society of America volume three, a separate version of Thom Kallor similar to his pre-Crisis incarnation appears, having traveled to the present day. He is diagnosed with borderlineschizophrenia, which he began displaying symptoms of shortly after gaining his abilities.[6]Gog soon restores Kallor's sanity, after which he leaves thesanatorium he had been treated at and begins working as a gravedigger, which he believes will help him carry out his mission.[7] During a battle with the Justice Society Infinity ofEarth-2, it is revealed that Kallor's suit was designed byBrainiac 5 and two of his alternate universe counterparts and is a map of themultiverse.[8]
InFinal Crisis: Legion of 3 Worlds, it is revealed that Starman was sent to the 21st century to retrieveSuperboy's corpse and resurrect him using a regeneration chamber in theFortress of Solitude.[9] At the end of the series, Starman remains in the 21st century to carry out the will ofR. J. Brande.[5]
Thom Kallor reappears on the Legion roster following the events ofFlashpoint. He later leaves the team to rescue Dream Girl from the Dominators after she and Brainiac 5 are kidnapped.
InDoomsday Clock, Star Boy is among the Legion members who appear in the present afterDoctor Manhattan undoes his alterations to the timeline, restoring the Legion of Super-Heroes and theJustice Society of America.[10]
Thom Kallor can temporarily increase the mass and density of any object or person. The version of Thom Kallor working with the Justice Society of America can travel between universes using a combination of his density manipulation and his uniform, a map of the multiverse created by Brainiac 5.[8] In addition, Kallor can use his density manipulation to create a black hole.
Kallor is also skilled at hand-to-hand combat.
As a member of the Legion of Super-Heroes, Thom utilizes a Legion Flight Ring, which enables him to fly and survive in space and other dangerous environments.