Marvel Heroes who Stanted as Marvel Villains. How many can you name?

[Artistsean]

I was thinking the other day about how many Marvel heroes actually started as bad guys. You could easily fill a whole Avengers team with Avengers who started out as enemies of the Avengers.
Wonder Man
Hawkeye
Vision
Scarlet Witch
Quicksilver
Red Hulk
Black Knight
and more.

How many other Marvel Superheroes, not just Avengers, can you think of?

 

[WolfCypher]

Kaine
Venom
Eddie Brock in general
AoA Sabretooth
Magneto
Doctor Doom
Sinest...NOPE...nope, that's DC...

 

[Dread]

Black Widow was a Commie spy for a long time before joining the side of angels.

It's a bit of a stretch, but Red Nine may qualify. He turned up in ASM #264 in the 80's as a 16 year old kid whose father - a NASA scientist - made him a suit of armor and his first inkling was to pick a fight with Spider-Man just 'cause. Subsequently, he became one of the Initiative recruits and has taken part in some big battles, and in general has gained a more even temperament.

The Sandman worked with Silver Sable and was a hero for some time, before Wizard's Id machine turned him back.

How about some Thunderbolts? Even after the events of those Avengers annuals, Songbird (formerly Screaming Mimi) and Mach V (formerly Beetle) are still two former villains whose transition to hero has been long term and mostly genuine. Atlas qualified until the Revengers incident.

Magneto has flipped flopped between villain/terrorist and hero several times. Beyonder considered him a hero during SECRET WARS, even.

 

[Harlekin]

Darkstar and any of those pinko commies, really.

 

[Roose Bolton]

Bah, those decadent Capitalists in the Avengers are the real villains

 

[Dread]

Black Cat also qualifies, even if she's gone from being a burglar to Spidey's girlfriend/partner to vengeful ex to P.I. to FWB/occasional thief again.

 

[runawayboulder]

Rogue

 

[Scourge2099]

Diamondback
White Queen
Silver Surfer
Juggernaut

 

[runawayboulder]

...Diamondback and her 2 buddies from BAD Girls Inc (Black Mamba and Asp) were villains as well before going legit. Mamba once set up Hercules into getting beat down by the Masters of Evil way back when during Avengers: Under Siege.