Hain

From Memory Alpha, the free Star Trek reference.

Hain was an associate of Morn's, involved in the Lissepian Mother's Day Heist along with three others. Upon hearing of Morn's death in 2374, he posed as a member of Lurian Security. He informed Quark that Morn was royalty, and that his riches belonged to the royal family. This was a lie created to double-cross the other thieves. When all the conspirators met up in a cargo hold that supposedly contained the latinum stolen in the heist, Hain and the other thieves began arguing and shooting at each other. It all turned out to be a set-up devised by Morn to allow Odo to arrest the thieves. (DS9: "Who Mourns for Morn?")

Hain was played by Trek regular Gregory Itzin.