Mark Barrett
Mark Barrett is an actor who portrayed the background Ferengi Lonzo in the  episode . His costume was sold off on the It's A Wrap! sale and auction on eBay and was previously worn by guest actor Lee Arenberg in the episode . 

Barrett studied acting at the American Conservatory Theater in San Francisco and earned a BA in Theater from UCLA. He is also trained in jazz and tap dance. Beside several stage plays, Barrett had featured and recurring parts in several television series, such as Generations, General Hospital, Stand By Your Man, Boy Meets World, Ask Harriet (1998, with Willie Garson and Rob LaBelle), The Naked Truth (1998), Malibu, CA (1999), and Passions.

Among his feature film credits are the drama Tap (1989, with Terrence E. McNally, Lloyd Kino), ' comedy Postcards from the Edge (1990, with George D. Wallace, Marcelo Tubert, and Natalia Nogulich), 's drama Fearless (1993, with John de Lancie, Steven Culp, Stephanie Erb, Eric Menyuk, David Carpenter, and Rico E. Anderson), the action drama Texas Payback (1998, with Angelo Tiffe), and the comedy sequel Scary Movie 2 (2001, with Woody Bosco, Drew Renkewitz, Suzanne Bianqui, Antony Acker, LaFaye Baker, Tim Rigby, Bridgett Riley, and Geneviere Anderson).

Between 2007 and 2019, Barrett worked as stand-in for actor  on the comedy series The Big Bang Theory. During these twelve years he also appeared several times as background actor, mostly as an university cafeteria patron.

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Performers
DS9 performers