When/where was she revealed?

In this thread, http://www.hcrealms.com/forum/showthread.php?t=238379.

Bingo! That is correct.

V Dr. Octopus
Team: Sinister Syndicate
Range: 6
Keywords: Scientist, Sinister Six, Masters of Evil, Thunderbolts

10 10 17 3

10 10 17 3

9 10 16 3

9 9 16 2

8 9 16 2

8 8 16 2

8 8 15 2

KO KO KO KO

KO KO KO KO

KO KO KO KO

KO KO KO KO

KO KO KO KO

Speed - Eight is Enough: Dr. Octopus has Flurry and Plasticity. Dr. Octopus can use flurry as though he were adjacent to any character within his line of sight and within his unmodified range.
Defense - Flailing Appendages: Dr. Octopus can use flurry. Dr. Octopus gets +1 against ranged attacks.

Wow, Dr. Octopus.

U ? and ??
Team: No Affiliation
Range: 0
Keywords: Detective, ???, ???

8 10 17 2

7 9 16 2

7 9 15 2

6 8 15 1

6 7 14 1

5 8 14 1

5 9 14 1

KO KO KO KO

KO KO KO KO

KO KO KO KO

KO KO KO KO

KO KO KO KO

Speed - Speed SP: ? and ?? can use Smoke Cloud and Stealth.
Attack - Attack SP: Give ? and ?? a power action to make a ranged combat attack as if they had a range of 6. Modify their damage by +1. This power may not be used with a duo attack.

Ventriloquist and Scarface?

The Questions?

Correct!

U Charlie and Renee
Team: No Affiliation
Range: 0
Keywords: Detective, Gotham City, Martial Artist

8 10 17 2

7 9 16 2

7 9 15 2

6 8 15 1

6 7 14 1

5 8 14 1

5 9 14 1

KO KO KO KO

KO KO KO KO

KO KO KO KO

KO KO KO KO

KO KO KO KO

Speed - Who are you?: Charlie and Renee can use Smoke Cloud and Stealth.
Attack - Intergang's Gun: Give Charlie and Renee a power action to make a ranged combat attack as if they had a range of 6. Modify their damage by +1. This power may not be used with a duo attack.

Your go Sate.

I'll make things too easy so I don't have to check back. No cheating.

#420 LE Not Your Mom
Team: Smothered*
Range: 8
Points: 140
Keyword: Your Mom, Your Generic Mom

9 11 18 4

8 10 18 3

8 9 17 3

8 9 17 3

8 9 16 2

7 8 15 2

7 8 14 2

KO KO KO KO

KO KO KO KO

KO KO KO KO

KO KO KO KO

KO KO KO KO

*Unnecessary hint

Jean Grey or Cable?

Neither, actually. But you're in the right neighborhood.