Spider-Man - Season 1 - Eps 6: The Sting of the Scorpion
J. Jonah Jameson hires Dr. Farley Stillwell who is a raining genius in genetic engineering, to make a new super hero that can match and defeat Spider-Man. With a willing participant, Mac Gargain, they engineer the DNA of a scorpion and him together to form a new hero, The Scorpion. However, when Mac thinks they have turned him into a freak, hero turns to monster and he goes on a rampage. Spider-Man is then forced to step in to stop creation from killing creator.
About Spider-Man

Title: Spider-Man
First Air Date: 1994-11-19
Last Air Date: 1998-01-31
Status: Canceled
Rating: 8.285/10 (from 1042 votes)
Language: EN
Seasons: 5
Total Episodes: 65
Network: Fox Kids FOX
Genres: Animation, Action & Adventure
Production Companies: Marvel Entertainment Group, Marvel Films, New World Entertainment Films, TMS Entertainment, Genesis Entertainment
Synopsis
Bitten by a neogenetic spider, Peter Parker develops spider-like superpowers. He uses these to fight crime while trying to balance it with the struggles of his personal life.
Cast

Christopher Daniel Barnes
Peter Parker / Spider-Man (voice)

Sara Ballantine
Mary Jane Watson (voice)

Jennifer Hale
Felicia Hardy (voice)

Linda Gary
Aunt May Parker (voice)

Gary Imhoff
Harry Osborn (voice)

Ed Asner
J. Jonah Jameson (voice)

Rodney Saulsberry
Joe "Robbie" Robertson (voice)

Roscoe Lee Browne
Kingpin (voice)