We had a few custom Watcher datafiles in Fearsome Avengers: Breakout. Some of them were of player characters whose players, for various reasons, had to bow out of the game. Others were always Watcher characters. Here they are, so you can use them in your own campaigns.
Arach-Knight
Cable
Original datafiles source: Marvel Heroic Roleplaying. Modified by Plot Points Blogs.
Mad Dog
Red Norvell
This datafile is adapted from the Thor datafile, as seen in Marvel Heroic Roleplaying.