Ultron first appeared in Avengers #55, published by Marvel in 1968. That places it in the Silver Age.
Why this issue matters
Hank Pym's creation turning on its maker. Ultron appears in disguise as the Crimson Cowl one issue earlier in #54, so #55 is the full reveal and #54 is the cameo, a distinction worth knowing before buying either.
Key facts
Avengers #55
- Character: Ultron
- Publisher: Marvel
- Cover year: 1968
- Era: Silver Age
Before you buy or sell one
- Check it is a first print, not a facsimile or reprint. Newsstand and direct editions are priced differently too.
- Condition decides most of the value. Whether grading is worth it depends on the copy.
Other first appearances from 1968
- Vision Avengers #57, 1968
More Marvel firsts from the Silver Age
- Kang the Conqueror Avengers #8, 1964
- Sandman Amazing Spider-Man #4, 1963
- Lizard Amazing Spider-Man #6, 1963
- Electro Amazing Spider-Man #9, 1964
- Mysterio Amazing Spider-Man #13, 1964
- Scorpion Amazing Spider-Man #20, 1965
- Rhino Amazing Spider-Man #41, 1966
- Norman Osborn Amazing Spider-Man #23, 1965
Got a copy?
I buy key issues and whole collections across the UK, and I will tell you honestly whether what you have is the real first or a later printing. Send me photos of the cover and the indicia and I will come back with a straight answer, and a proper valuation if you want one.