Religion: not determined yet
Name: Dr. Jonas Harrow
Classification:
villain
scientist
Publisher(s): 
First Appearance: The Amazing Spider-Man (vol. 1) #114 (Nov. 1972): "Gang War, Shmang War! What I Want to Know Is...Who the Heck Is Hammerhead?"
Creators: Gerry Conway, John Romita, Jim Starlin, Tony Mortellaro
Number of Appearances: 20
Teams/Affiliations: Hood's Army
Enemy of: Spider-Man
Ally: Hammerhead
Ally: Kangeroo
Ally: Megawatt
Worked for: Roxxon
Gender: male
The Amazing Spider-Man (vol. 1) #114 (Nov. 1972): "Gang War, Shmang War! What I Want to Know Is...Who the Heck Is Hammerhead?"
The New AvengersPeter Parker, The Spectacular Spider-Man Annual #3 (Sep. 1981): "A Gallery of Spider-Man's Most Famous Foes!"Thing / She-Hulk: The Long Night #1 (May 2002): "The Long Night"
Suggested links for further research about this character:
- http://en.wikipedia.org/wiki/Jonas_Harrow
- http://comicbookdb.com/character.php?ID=5761
- http://www.comicvine.com/jonas-harrow/29-33251/
- http://www.marvunapp.com/master/harkharz.htm
- https://www.comics.org/issue/25622/
- http://comicbookdb.com/issue.php?ID=1724