Wild speculation: Could Weapon X be the cameo coming up in Episode 5? I mean he is also a weapon that was constructed by the government’s and Mandripoor is his “place”.
https://www.cbr.com/wolverine-anthology-show-disney-plus/amp/
I think I saw from multiple places that its a woman supposedly, blonde
Apparently, the redditor backtracked and said it was not a blonde.
They just mistook Omega Red’s long blonde tangled mess of a head o’ hair for a blonde woman? 
I hope it’s this. I actually have this one!
It may actually tie to “Turkish Delight” that’s a reference to the chronicles of Narnia, where the blonde witch makes candy for the children out of a drop of potion and snow.
There’s 3 blonde witches in Marvel I can think of off the top of my head Emma, Enchantress, and Agatha has been portrayed as blonde in Marvel comics.
I found Turkish Delight to be pretty darn nasty…I sure wouldn’t do any spying with that as a reward. Best bring out the snickers bar you want me chasing down bad guys.
As long as you’re not running like a Betty White…
https://m.youtube.com/watch?v=18ya0-OZ58s
One of my all time favorites…
Arcanna?
If you scramble the letters of TURKISH DELIGHT and add several other letters, what do you get?
MEPHISTO!!!
And also get rid of a couple letters like K. It’s all right there!
I literally sold a wolverine origins 10 cover A and B like 2 weeks ago for $80 and its on key collectors trending list lol
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z <= make a lot of words when you mix those around… even duplicate a few… 
Secret warriors the list #1 and secret warriors 2010 11-15 could also have potential for Leviathan they were in Agent Carter before.
so Valentina Allegra de Fontaine is the “mystery” character ?