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Those two are correct. List updated. Had the Burglar made it to the final clue round, I would have noted that he looked younger here than in most continuities. Only six left! So you can ask multiple questions of each without running out of the 20.
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Who created the comic version of 801 and what is its species?
In what series did 908 debut and who created him? Same for 938 and 973.
What species is 997?
999: comics series, comics creator, and species?
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801. Some sort of extradimensional being; don't know if species was ever given a name; comics version created by Peter David, Dale Keown
908. Comics version from The Order (Matt Fraction, Salvador Larroca)
938. Comics version from The Avengers (Stan Lee, Don Heck)
973. Comics version from The Incredible Hulk (Peter David, Gary Frank, Cam Smith)
997. Probably human (hates anything that isn't human looking enough)
999. Human (mutant) from Uncanny X-Men (Scott Lobdell, John Romita, Jr.)
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801. Dark Entity, Action Hour
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908. Ezekiel Stane, Future Avengers
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938. Living Laser, Yost
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973. Hoarfen, Yost
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999. John Cougar Mellencamp, Yost
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997. Dark Aegis, Action Hour
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Those are all correct. I'll start the next round shortly.