Harry Osborn first appeared in Amazing Spider-Man #31, published by Marvel in 1965. That places it in the Silver Age.
Why this issue matters
Peter's university roommate and eventually his best friend, in the same issue as Gwen Stacy. His slow slide into his father's madness is one of the longest running threads in the title.
Amazing Spider-Man #31 is also the first appearance of Gwen Stacy, which is part of why the book carries the weight it does.
Key facts
Amazing Spider-Man #31
- Character: Harry Osborn
- Publisher: Marvel
- Cover year: 1965
- 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.
Go deeper
Other first appearances from 1965
- Scorpion Amazing Spider-Man #20, 1965
- Norman Osborn Amazing Spider-Man #23, 1965
- Nick Fury Strange Tales #135, 1965
- Juggernaut X-Men #12, 1965
More Marvel firsts from the Silver Age
- Kang the Conqueror Avengers #8, 1964
- Ultron Avengers #55, 1968
- Sandman Amazing Spider-Man #4, 1963
- Lizard Amazing Spider-Man #6, 1963
- Electro Amazing Spider-Man #9, 1964
- Mysterio Amazing Spider-Man #13, 1964
- Rhino Amazing Spider-Man #41, 1966
- Green Goblin Amazing Spider-Man #14, 1964
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.