<Li> Some characters appear first in a normal supporting role before becoming a superhero or villain . For example, Roderick Kingsley first appeared as a minor supporting character in The Spectacular Spider - Man #43 (June 1980). However, he would later take on the villainous role of the Hobgoblin in The Amazing Spider - Man #238 (March 1983), becoming one of Spider - Man's most dangerous foes . The latter issue, featuring his first appearance as the Hobgoblin, is worth quite a bit more than his original debut . </Li> <P> Note: All values are according to Comics Price Guide . Prices given are for the best available editions . Thus prices of Golden Age comics are for editions in "fine" condition because editions in better condition for such old comics are either extremely rare or have never been confirmed to exist . Prices for Silver Age and subsequent comics are for "very fine" editions . Priced are also for editions graded by the Certified Collectibles Group . Data is correct as of 25 January 2006 . </P> <Table> <Tr> <Th> Character (s) </Th> <Th> First Appearance </Th> <Th> Cover Date </Th> <Th> Publisher </Th> <Th> Estimated Value </Th> </Tr> <Tr> <Td> Superman </Td> <Td> Action Comics #1 </Td> <Td> June 1938 </Td> <Td> DC Comics </Td> <Td> $2,100,000 </Td> </Tr> <Tr> <Td> Batman </Td> <Td> Detective Comics #27 </Td> <Td> May 1939 </Td> <Td> DC Comics </Td> <Td> $475,000 </Td> </Tr> <Tr> <Td> Sandman (Wesley Dodds) </Td> <Td> Adventure Comics #40 </Td> <Td> July 1939 </Td> <Td> DC Comics </Td> <Td> $60,000 </Td> </Tr> <Tr> <Td> Namor the Sub-Mariner </Td> <Td> Marvel Comics #1 </Td> <Td> October 1939 </Td> <Td> Timely Comics </Td> <Td> $400,000 </Td> </Tr> <Tr> <Td> Jay Garrick / Flash I; Hawkman </Td> <Td> Flash Comics #1 </Td> <Td> January 1940 </Td> <Td> All - American Pubs . </Td> <Td> $95,000 </Td> </Tr> <Tr> <Td> Captain Marvel </Td> <Td> Whiz Comics #2 </Td> <Td> February 1940 </Td> <Td> Fawcett Comics </Td> <Td> $90,000 </Td> </Tr> <Tr> <Td> Robin </Td> <Td> Detective Comics #38 </Td> <Td> May 1940 </Td> <Td> DC Comics </Td> <Td> $75,000 </Td> </Tr> <Tr> <Td> The Spectre </Td> <Td> More Fun Comics #52 </Td> <Td> February 1940 </Td> <Td> DC Comics </Td> <Td> $72,000 </Td> </Tr> <Tr> <Td> Lex Luthor </Td> <Td> Action Comics #23 </Td> <Td> May 1940 </Td> <Td> DC Comics </Td> <Td> $8,025 </Td> </Tr> <Tr> <Td> The Joker; Catwoman </Td> <Td> Batman #1 </Td> <Td> Spring 1940 </Td> <Td> DC Comics </Td> <Td> $160,500 </Td> </Tr> <Tr> <Td> Green Lantern </Td> <Td> All - American Comics #16 </Td> <Td> July 1940 </Td> <Td> All - American Pubs . </Td> <Td> $131,250 </Td> </Tr> <Tr> <Td> Captain America </Td> <Td> Captain America Comics #1 </Td> <Td> March 1941 </Td> <Td> Timely Comics </Td> <Td> $125,250 </Td> </Tr> <Tr> <Td> Aquaman; Green Arrow </Td> <Td> More Fun Comics #73 </Td> <Td> November 1941 </Td> <Td> DC Comics </Td> <Td> $10,050 </Td> </Tr> <Tr> <Td> Wonder Woman </Td> <Td> All Star Comics #8 </Td> <Td> December 1941 </Td> <Td> All - American Pubs . </Td> <Td> $60,000 </Td> </Tr> <Tr> <Td> Barry Allen / Flash II </Td> <Td> Showcase #4 </Td> <Td> October 1956 </Td> <Td> DC Comics </Td> <Td> $48,000 </Td> </Tr> <Tr> <Td> The Justice League of America </Td> <Td> The Brave and the Bold #28 </Td> <Td> May 1960 </Td> <Td> DC Comics </Td> <Td> $8,127 </Td> </Tr> <Tr> <Td> The Fantastic Four </Td> <Td> The Fantastic Four #1 </Td> <Td> November 1961 </Td> <Td> Marvel Comics </Td> <Td> $28,896 </Td> </Tr> <Tr> <Td> The Hulk </Td> <Td> The Incredible Hulk #1 </Td> <Td> May 1962 </Td> <Td> Marvel Comics </Td> <Td> $21,672 </Td> </Tr> <Tr> <Td> Dr. Doom </Td> <Td> The Fantastic Four #5 </Td> <Td> June 1962 </Td> <Td> Marvel Comics </Td> <Td> $4,154 </Td> </Tr> <Tr> <Td> Spider - Man </Td> <Td> Amazing Fantasy #15 </Td> <Td> August 1962 </Td> <Td> Marvel Comics </Td> <Td> $45,150 </Td> </Tr> <Tr> <Td> Iron Man </Td> <Td> Tales of Suspense #39 </Td> <Td> March 1963 </Td> <Td> Marvel Comics </Td> <Td> $3,837 </Td> </Tr> <Tr> <Td> Doctor Strange </Td> <Td> Strange Tales #110 </Td> <Td> July 1963 </Td> <Td> Marvel Comics </Td> <Td> $3,500 </Td> </Tr> <Tr> <Td> X-Men; Magneto </Td> <Td> X-Men #1 </Td> <Td> September 1963 </Td> <Td> Marvel Comics </Td> <Td> $13,545 </Td> </Tr> <Tr> <Td> The Avengers </Td> <Td> The Avengers #1 </Td> <Td> September 1963 </Td> <Td> Marvel Comics </Td> <Td> $5,148 </Td> </Tr> <Tr> <Td> Daredevil </Td> <Td> Daredevil #1 </Td> <Td> April 1964 </Td> <Td> Marvel Comics </Td> <Td> $3,160 </Td> </Tr> <Tr> <Td> Teen Titans </Td> <Td> The Brave and the Bold #54 </Td> <Td> July 1964 </Td> <Td> DC Comics </Td> <Td> $415 </Td> </Tr> <Tr> <Td> The Punisher </Td> <Td> The Amazing Spider - Man #129 </Td> <Td> February 1974 </Td> <Td> Marvel Comics </Td> <Td> $15,000 </Td> </Tr> <Tr> <Td> Wolverine </Td> <Td> The Incredible Hulk #181 </Td> <Td> October 1974 </Td> <Td> Marvel Comics </Td> <Td> $1600 </Td> </Tr> <Tr> <Td> Teenage Mutant Ninja Turtles </Td> <Td> Teenage Mutant Ninja Turtles #1 </Td> <Td> May 1984 </Td> <Td> Mirage Studios </Td> <Td> $2,400 </Td> </Tr> </Table> <Tr> <Th> Character (s) </Th> <Th> First Appearance </Th> <Th> Cover Date </Th> <Th> Publisher </Th> <Th> Estimated Value </Th> </Tr>

Who came out first iron man or batman