Brunt

He took care of Quarks mom when she was cought earning profit. Brunt made her confess by threatening to turn her into an indentured servant.

Gaila

He was a Ferengi arms dealer. He bought his very own moon. Odo thought he was more devious than Quark.

Leck

He was unique because he disliked wealth. He was recruited by Quark to join a team of Ferengi Commandoes, who were rescuing Quarks Mom from the Dominion. He joined to test his skills against the Jem'Hadar. He hated to be cheated as Ferengi generally do. He managed to kill a Jem'Hadar on Empok Nor.

Xindi

They were an evolved species who lived on Xindus in the Delphic Expanse. They attacked Earth in attempts to end humanity. Instead they helped form the Interstellor power of Unitied Earth.

There were six different species that developed on the Xindus. Two from each different species were in the government. They all had their own distinct opinions about the dominance of the race. Two Xindi from each species were in the government. They all had their own distinct opinions about how things should be done.

Yridians

They were warp capable. These information merchants were smugglers as well. They were devious and untrustworthy. Being humanoid, they were generally bald. A few of them had black or brown curly hair.