Editing Doctor Spectrum (section)

{{Redirect|Joe Ledger|the series of bio-terrorism thriller books written by Jonathan Maberry|Joe Ledger Series}}
{{Infobox comics character
| image = IronMan-63.jpg
| caption = The Kinji Obatu incarnation of Doctor Spectrum as depicted in ''[[Iron Man (comic book)|Iron Man]]'' #63 (October 1973).<br> Art by [[Gil Kane]].
| character_name = Doctor Spectrum
| real_name =Kinji Obatu<br>Billy Roberts<br>Joseph Ledger 
| publisher = [[Marvel Comics]]
| debut = Villain: <br>''[[Avengers (comic book)|The Avengers]]'' #69 (November 1969)<br>Hero: <br>''The Avengers'' #85 (February 1971)
| creators = [[Roy Thomas]] (writer)<br>[[John Buscema]] (artist)
| alliances = [[Squadron Sinister]]<br/>[[Squadron Supreme]] (Earth-712)<br/>[[Squadron Supreme (Supreme Power)|Squadron Supreme]] (Earth-31916)
| species = [[Human]]
| aliases = 
| powers = Via Power Prism:<br>Flight<br>Energy projection and manipulation<br>Ability to survive in space<br>Intangibility
}}
{{MarvelUSide|Kinji Obatu|[[Earth-616]]|Billy Roberts|Earth-616|Alice Nugent|Earth-616|Joseph Ledger|[[Earth-712]]|Joseph Ledger|[[Earth-31916]]}}

'''Doctor Spectrum''' is the name of several fictional characters appearing in [[American comic book]]s published by [[Marvel Comics]]. There have been five versions of the character to date—three supervillains from the mainstream Marvel Universe belonging to the team [[Squadron Sinister]] ([[Earth-616]]) and two heroes from different alternate universes. The two heroes each belong to a version of the team Squadron Supreme, the [[Squadron Supreme]] of [[Earth-712]] and the [[Squadron Supreme (Supreme Power)|Squadron Supreme]] of [[Earth-31916]] respectively). Spectrum is a [[pastiche]] of DC's [[Green Lantern]].<ref name="JLcompanion">Interview with Roy Thomas and Jerry Bails in ''The Justice League Companion'' (2003) pp. 72–73</ref>