Doctor Spectrum was a construct created by the demon Mephisto and programmed by the Power Elite in cooperation with a recently-revived Agent Coulson to be a member of the Squadron Supreme of America, a superhero team sponsored by the U.S. Government. Doctor Spectrum's programming had him believe that he was an astronaut named Joseph Led that discovered a Power Prism on a space walk, which granted him superhuman powers.[1]

Doctor Spectrum using his Power Prism.

Doctor Spectrum and his team were brought in to meet General Ross in order to be the U.S.'s response to the now-unaligned Avengers.[2] The Squadron Supreme was later put to the test against King Namor and his Defenders of the Deep, countering several attacks against Roxxon in American waters.[3][4]

Jospeh was on his office when a group of Frost Giants from Jotunheim invaded Washington on behalf of Malekith the Accursed during his War of the Realms. As Doctor Spectrum, Ledger met up with the rest of the Squadron. They killed some of the Frost Giants and routed the remaining invaders to the Canadian frontier in Lake Erie. Coulson subsequently dispatched the team to Ohio.[1]


Seemingly those of the Joseph Ledger of Earth-712.


Seemingly those of the Joseph Ledger of Earth-712.


Power Prism

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