I tried to post this before, but it didn't show up when I went back to check the forum after a restart.
Recompiled everything I had tried to post.
Some more to add and other notes.
Isis Fox - Soul Sister - 1970s
Jack Hades - Motorcycle Daredevil - 1970s He looks like Evel Knievel.
Jenny Zheng - Promising Student.
Wu Bin of Turtle Islnd - Wandering Sorcerer
Li Mao - Accidental Hero - 69 He ends up becoming one of the Seven Masters latter on. His latter Shadowfist card identifies him as a Young Master is in Seven Masters colors instead of Dragon ones.
Swift Eagle - Brave Warrior - 1850s
Steven Wu - Zen Gunman
Old Uncle - Martial Artist
Lin - Moon Sorceress
Senoritas - Three Sisters - 1850 "Brains, beauty, and a trio of Winchesters" Don't have the exact name of all 3 of them.
Sidekick - Scrappy Teenager I think the character on the card is in some of the Shadowfist fiction. don't have a name for her.
The Shadowfist card for Dirk Wisely identifies him as a Man of Action.
The shadowfist card for the Hacker - Gun-Totin Techie looks like it has the same character on the malloc() card, but he doesn't have the cybernetic arm and looks like he is in trouble. Also note, that this card shows up in earlier sets before the set with malloc().
Iala Mane is identified as a Blind Master on the newer cards. He is back in the fight and so is the Golden Gunman.
In the Dark Future fiction they have a gathering of Dragons.
Empire of Evil, Flashpoint, Netherworld, and the Standard/Limited sets may have some others.
Thevarious examples in the core FS rule book has some character mentioned in it. Mike the ninja for example.
ChimpShack has more promo cards than the Shadowfist one on it.
You could post the list on the Yahoo Shadowfist group and see if they have any further info on any characters.