Doctor Light (Kimiyo Hoshi)

Doctor Light is a fictional comic book superhero in the DC Comics universe.

Kimiyo Hoshi is a distinct character from the DC villain of the same name. She has, however, crossed paths with the villainous Doctor Light on several occasions.

Fictional character biography
Kimiyo Hoshi, a brilliant but arrogant and unpleasant scientist, was the supervising astronomer at an observatory in Japan, overseeing a group of astronomers charting the unnatural effects of the Crisis on Infinite Earths. (She is also a medical doctor, as shown in Justice League Annual #3 (1989) and Justice League America #55 (October 1991).)

As the Crisis continued, Hoshi's fascination with the phenomenon grew into an obsession while the men grew concerned for their safety. Disgusted by their mounting fear, Hoshi arrogantly insulted them and ordered an evacuation, leaving her to study the Crisis alone through her telescope.

Meanwhile, the Monitor, a being linked with all positive matter, senses his enemy, the Anti-Monitor, absorbing yet another positive-matter Earth with his antimatter cloud. In order to tip the scales for the heroes of the positive universe, the Monitor activates one last warrior.

He sends a devastating beam of energy from the star Vega to Earth, which strikes the observing Hoshi, leaving massive destruction in its wake. Granted the power of photonics and the name Doctor Light, Hoshi is assigned by the Monitor to guard one of the vibrational forks needed to save the Earth. Teen Titans member Starfire and Outsiders member Halo set out to destroy the machine. Since Doctor Light can't speak to them in English, she resorts to blasting them away from the machine. Superman is the first to communicate with her, given his knowledge of most of Earth's languages.

Once the Earth's heroes and villains are brought aboard the Monitor's satellite, the Japanese-speaking Katana takes over as Kimiyo's translator.

Doctor Light, granted the ability to understand English, accompanies several heroes to the anti-matter universe to confront the Anti-Monitor. She and Superman soon discover the machines that the villain has deployed to destroy the remaining Earths. The Anti-Monitor ambushes the Man of Steel; Doctor Light defends Superman as best she can. Supergirl arrives, and sacrifices her life, allowing Doctor Light to carry the unconscious Superman to safety.

Seeing Supergirl's sacrifice makes Doctor Light realize how selfish she has been, and she resolves to change.

When Harbinger summons her to fight in the final battle, Doctor Light is ready. As the other heroes barrage the Anti-Monitor, she absorbs the energy of a gigantic star that he is using as a power source. Scoring the first fall of the Anti-Monitor during that battle, she blasts a gaping hole through him.

In the post-Crisis continuity, Supergirl was written out of existence, so it is explained that Doctor Light was inspired by the other heroes.

She is potentially one of the most powerful superheroines in the DC Universe, but she has not tapped into the heightened levels of power she used during the Crisis. (Although few remember those events, Doctor Light is one of the few who do, seeing as how she once mentioned in Showcase '96 #9 (October 1996) that she's faced "Anti-Matter Gods").

Doctor Light has joined the Justice League a few times over the years, most notably as a member of Justice League Europe during the latter half of its incarnation. She was also a one-time ally of the Outsiders and was briefly part of an incarnation of the Doom Patrol. During her time on the Justice League Europe, she believed that her anti-social attitude during the Crisis was due to the food she regularly ate, after Power Girl is diagnosed with a similar condition. However, it is revealed that her behavior in Crisis was, in fact, her genuine behavior. While a member of the Justice League, Doctor Light formed significant friendships with The Flash (Wally West) and Power Girl. There is a protracted period of animosity with the member of the Global Guardians known as Rising Sun. His romantic endeavours win out and the two enter into a relationship

Infinite Crisis and after
In Green Arrow vol. 3, #54 (November 2005), following his recovery from the mind-wipe he suffered at the hands of the Justice League, Arthur Light, the villainous male Doctor Light attacked Doctor Hoshi and drained her of her powers.

It appeared that her de-powerment was temporary; in Infinite Crisis #5 (February 2006) she used her powers to aid in the evacuation of Tokyo, Japan. In that same issue she was warned by Bart Allen, in the costume of the Silver Age Flash, of the escape of an enraged Superboy-Prime. She was later seen in Infinite Crisis #7 (April 2006) battling the evil Doctor Light.

A flashback in Action Comics #838 (June 2006) reveals that Doctor Light and The Ray, heroes possessing solar-based powers, took part in an unsuccessful attempt to re-activate Superman's powers.

One Year Later and 52
However, an article discussing the destruction of Star City (and, by extension, Kimiyo's depowerment) appeared at the 52 website, which is designed to complement the weekly comic series. The article places a date on the city's destruction, which was depicted in the final 2 Pre-OYL Green Arrow arcs, specifying that the event took place on May 15. Problematically, this dating places the story after the events depicted in Infinite Crisis.

Given this dating, Kimoyo's depowerment took place during the events of 52 - Week 2 which, given Kimiyo and Green Arrow's appearances at the end of 52 - Week 1, would appear to make sense, although it in turn makes nonsense of information contained in Green Arrow vol. 3, #54, where it is revealed that Kimiyo has not used her powers for two years.

The story arc also concludes with Green Arrow experiencing a strange multiplying effect that places the story during Infinite Crisis, not two weeks after the event's conclusion. (Several other characters in the DCU experienced this effect in the issue of their titles that immediately preceded the OYL jump).

Kimiyo Hoshi appeared in costume in 52 Week 35, alongside various other heroes. All are assisting the injured victims of Lex Luthor, who had caused a rain of 'supermen' by deactivating their powers. She is also shown in 52 Week 50, in the climactic battle of World War III.

Dr. Light appears in World War III: United We Stand, the fourth issue of the World War III mini-series that coincided with 52 Week 50. She is one of the first wave of heroes who confront (and are taken down by) Black Adam. He grasps her neck with such force that she instantly blacks out; he throws her aside.

Geoff Johns has revealed on his message board that he is working on storylines involving Doctor Light. .

Oracle invites Kimiyo to join the Birds of Prey (issue #100), but she was not selected to take part in the first mission. She does, however, appear in Birds of Prey #113 (January 2008), assisting Oracle by scanning the electromagnetic spectrum for any evidence that might lead her to the parties responsible for an influx of hi-tech weaponry being smuggled into Metropolis. She is, however, unable to locate any such evidence.

Doctor Light is only occasionally active in the superhero community owing to the fact that she is a single mother with two children. Gail Simone confirmed in a chat on comicbloc.com that Kimiyo's children have not been retconned out of existence by the recent changes to DC continuity (that resulted from the transformation of The Post Crisis Earth into "New Earth" during Infinite Crisis).

Doctor Light works in S.T.A.R. Labs and has an interior monologue about the erratic fluctuations in her powers that lead to her retirement from superheroing. Upon returning home from work, she is ambushed by the Dakota-based super-team the Shadow Cabinet. After briefly talking with the heroes, she becomes enraged and attacks them after coming to believe they have harmed her children, only to be quickly neutralized and kidnapped by the team. However, this is later revealed to have been orchestrated by Superman and Icon, as a way for both Shadow Cabinet and the League to gain information on each other. Hardware uses the candle that was once Arthur Light (Arthur having been recently killed by the Spectre) to restore Kimiyo's powers, allowing her to quickly defeat a powered-up Shadow Thief and his master, a restored and more powerful Starbreaker.

Kimiyo has been confirmed to be a member of the newest incarnation of the Justice League. In the crossover Blackest Night Kimiyo and the remaining members of the League investigate the Hall of Justice after it was overrun by the Black Lantern villains whose remains were kept in the Hall's vault for safe-keeping. Upon entering the Hall, Kimiyo senses the presence of her villainous counterpart, and separates from the group, believing this Black Lantern is hers alone to face. However, Kimiyo soon finds herself at the mercy of the Black Lantern Arthur Light. Although initially her powers seem to be ineffectual against the Black Lantern Light, when he threatens the lives of her children, Kimiyo manages to generate a light strong enough to destroy him and his black ring. She then proceeds to do the same to the Black Lantern Steel and Vibe, before passing out.

In the aftermath of the ordeal, Vixen tells Kimiyo that she is taking a leave of absence from the team in order to recover from her injuries. With Red Tornado destroyed, John Stewart temporarily offworld, and Firestorm unable to return to the team, Kimi is left with no members for the JLA. Luckily, she is approached by Donna Troy, who joins the team alongside her friends Cyborg, Dick Grayson, and Starfire. With the costume given to her by Hardware destroyed, Kimiyo designs a new one, and then travels to Metropolis in order to recruit Mon-El and the Guardian. Kimiyo briefly appears during the War of the Supermen, where she and the rest of the JLA attempt to repel General Zod's invasion forces.

After just three issues together, the new JLA team loses most of its members, with Kimiyo temporarily leaving the team in order to be with her children. Back in Metropolis, Kimiyo helps Supergirl rescue her friend Lana Lang after her body is possessed by the Insect Queen. A short time later, Kimiyo and Gangbuster investigate an object that crashes into a Metropolis park and leaves a massive crystallized crater in its center. While searching the crater, the two heroes discover a Bizarro-like creature that resembles Supergirl. Before Kimiyo can call for help, the creature lashes out and attacks her.

Powers and abilities
Doctor Light has the ability to manipulate ambient light for a variety of purposes. She can absorb all forms of illumination, and release that absorbed energy as blinding flashes of light, or destructive laser beams. She can refract lightwaves to create holographic images. Doctor Light can focus photons into "hard light" (a fictional form of energy which acts like a solid object), and fire blasts of pure force or create protective barriers. She can fly by riding lightwaves. She can also turn into light thus making her invisible to the naked eye. She can make blasts of destructive energy. Her weakness is that she needs a light source to fuel her powers, and being placed in an area of absolute darkness severely weakens her abilities.

Other versions
Teen Titans Go #48 has Killowat stuck in another dimension. That particular world is menaced by the Teen Tyrants (Teen Titans) and protected by The Brotherhood of Justice (Brotherhood of Evil). Kimiyo Hoshi is one of the Brotherhood's members.

In other media

 * Doctor Light appeared in the animated series Justice League Unlimited. She had speaking roles in the episodes "Epilogue" and "The Great Brain Robbery" and was voiced by Lauren Tom. In "Epilogue", she and other teammates were seen in a flashback. In the flashback, after defeating Ace's Royal Flush Gang, Amanda Waller alerted the team that Ace was going to have a psychic backlash which would've killed everyone in range of her power, which, at first, Light had disbelieved. In "The Great Brain Robbery", Light, Steel and Ice were sent to stop Lex Luthor's group of villains from pulling off a robbery. Light used her power to find them, but one of the villains, Doctor Polaris, used his power to throw Steel onto Light, knocking them both out.

List of titles

 * Blasters Special #1
 * Bloodbath Special #1–2
 * Crisis on Infinite Earths #4–7, 10, 12
 * Doom Patrol vol. 3, #4–6
 * Eclipso: The Darkness Within #2
 * Final Night #1
 * Identity Crisis #1
 * Invasion! #2
 * JLA: Our Worlds at War #1
 * Justice League #1–4
 * Justice League Annual #1, 3
 * Justice League America #54–56, 89–91
 * Justice League Europe #19, 30, 37–52, 54–58, 60–67
 * Justice League Europe Annual #1, 3
 * Justice League Quarterly #7
 * Justice League Spectacular #1
 * Showcase '96 #9
 * Superman: The Man of Steel #20
 * Superman vol. 2, #76
 * Wonder Woman vol. 2, #174–175
 * Green Arrow #53–54
 * Justice League of America #1
 * Birds Of Prey #100, 113

Significant appearances

 * Crisis on Infinite Earths #4 (July 1985); "And Thus Shall the World Die" – Hoshi is given superpowers by the Monitor. She becomes the fourth Doctor Light.
 * Justice League #1 (May 1987); "Born Again" – Doctor Light is given a Justice League signal device by Maxwell Lord (who is not officially connected to the League) in hopes she will join. Later, as Hoshi is giving a speech to the United Nations, the organization is attacked by terrorists (privately sent by Lord). Hoshi activates the signal device and joins the Justice League in defeating the terrorists.
 * Justice League #4 (August 1987); "Winning Hand" – Light, angry at Lord's deception to get her to join the League, quits.
 * Justice League Annual #3 (1989); "Around the World with the Justice League" – Hoshi joins the Japanese embassy of the Justice League in a non-superhero role.
 * Justice League America #54 (September 1991); "The Boot!" – Doctor Light rejoins the Justice League.
 * Justice League America #56 (November 1991); "Look Homeward Leaguers" – With their UN charter revoked and the League in flux, Doctor Light returns to Japan.
 * Justice League Spectacular #1 (March/April 1992); "Teamwork" – After the break-up of the former Justice League teams, Doctor Light is recruited by Green Lantern to help defeat the reorganized Royal Flush Gang. The heroes decide to recreate the Justice League branches and Light joins the new Justice League Europe.
 * Justice League Europe #37 (April 1992); "Changing" – Doctor Light gets a new costume.
 * Justice League Quarterly #7 (Summer 1992); "Time to Enjoy the Light" – Rising Sun of the Global Guardians woos Doctor Light.
 * Eclipso: The Darkness Within #2 (October 1992); "Brilliant Men" – A small group of heroes, including Doctor Light, saves the rest of the world's heroes who had been "eclipsed" by Eclipso.
 * Superman: The Man of Steel (February 1993); "Funeral for a Friend, Part 3: Funeral Day"; Superman (vol. 2)'' #76 (February 1993); "Funeral for a Friend, Part 4: Metropolis Mailbag II" – Doctor Light is among the heroes at Superman's funeral.
 * Justice League International vol. 2, #63 (April 1994); "Visions of Death" – Doctor Light becomes leader of Justice League International.
 * Justice League International vol. 2, #67 (August 1994); "Family Troubles" – With the dissolution of the European branch of the League, Doctor Light resigns to return to her children in Japan.
 * Showcase '96 #9 (October 1996); "Illumination" – After defeating a group of armored people who had come to upset one of her experiments, Hoshi decides she is both a scientist and a superhero.
 * Final Night #1 (November 1996); "Dusk" – After the sun is destroyed by the Sun-Eater, Doctor Light joins other former League members (the group was disbanded at this time) to help save the Earth.
 * JLA: Our Worlds at War #1 (September 2001); "A Date Which Will Live in Infamy" – Having joined the Outsiders, Doctor Light and the team battle Imperiex's scouts at the South Pole.
 * Wonder Woman vol. 2, #174–175 (November–December 2001); Doctor Light is recruited by Wonder Woman, along with a large group of female superheroes, to battle Circe and her group of female supervillains.
 * Doom Patrol vol. 3, #4–6 (March–May 2002); Doctor Light, along with Metamorpho, Elongated Man and Beast Boy, took part in a short-lived Doom Patrol team.
 * Identity Crisis #1 (August 2004); "Chapter One: Coffin" – Doctor Light attends the funeral of Sue Dibny.
 * Green Arrow vol.3, #53–54 The villain Doctor Light Steals Kimiyo's powers and leaves her badly injured and close to death.
 * Infinite Crisis #5 Kimiyo's powers have somehow returned to her, as she is seen using them to aid in the evacuation of Tokyo.
 * Teen Titans Annual #1 Kimiyo is helping with rescue efforts of Blüdhaven after Chemo was dropped on it.
 * Infinite Crisis #7 Kimiyo battles the evil Doctor Light.