Morph was a member while brainwashed by Sinister but when his mind recovered he left.
When the X-Men came to the Savage Land in search of Magneto and Charles Xavier they lost their powers and were captured by the Nasty Boys. Morph, Wolverine, and Ka-Zar rescued the team and the Nasty Boys were defeated.
They later helped Apocalypse kidnap various psychics but were defeated by the X-Men again.
Vertigo was a member of Mister Sinister's Marauders, but not the Nasty Boys.
In the Comics
They are all men.
There is a team member named Ramrod. He has yet to be adapted outside the comics.
A copy of Multiple Man once joined.