David Bertelsen
David Bertelsen is an actor who appeared as a Tandaran guard in the  first season episode . He filmed his scenes for this episode on Friday  and Tuesday  on Paramount Stage 9.

Bertelsen attended Washington State University and graduated with a B.S. in International Business. He trained acting under Aaron Speiser, Fred C. Thompson, Fred Tucker, and Brian Reise and appeared in commercials for Microsoft's X-Box and Folgers Coffee. On stage, Bertelsen performed in "Private Wars" and "Lovers and Other Strangers" at the	Hollywood Fight Club Theater, "Tartuffe" at the Washington State University Theater, and "Lakeboat" at the One Night Only Theater.

As an actor, Bertelsen worked on the daily soap Passions, the short drama 5 Minutes (2005), the short drama The Sit Down (2008, with Robert Miano), and the thriller Dreamkiller (2010, with John Savage). In 2010, he directed, wrote, produced, and starred in the drama Poppies: Odyssey of an Opium Eater. Also in 2010, Bertelsen executive produced the short film Rick's Torment.

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Performers
ENT performers