Porfirio was a security officer serving on the USS Enterprise-D by 2370, holding the rank of Ensign. In an alternate timeline where Montgomery Scott rescued James T. Kirk before he could be absorbed into the Nexus, the Enterprise was thrown back in time to 2293 in a universe where the Borg controlled much of the Alpha Quadrant. The Borg Queen possessed the body of Balitor, a Narisian working for the Alliance, and attempted to kill Captain Jean-Luc Picard. Porfirio was one of the security officers present, along with Worf and Ensign Houarner; the Queen possessed body was able to steal Porfirio's phaser and tried to kill the Captain before being subdued by Worf and Houarner. (Star Trek novel: Engines of Destiny)
| USS Enterprise (NCC-1701-D) security & tactical personnel | ||||||||||||||||||||||||||||||||||||||||||||||
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Addison • C. Anderson • Anderson • Arthur • Badnajian • Bailey • Barnaby • Belix • Benesch • Bernstein • Boyajian • Brindle • Burke • Bodonchar • Buchanon • Caledon • Cavay • Clarke • Conner • D'Angelo • Detaith • Detek • De Groodt • De Luz • Dreod • D'Sora • Frazer • Fong • Gomez • Greenblatt • Han • Hanson • Harcourt • Hasell • Hassett • Holzrichter • Horowitz • Houarner • Keenan • Kellog • Kessler • Kraner • Loyosha • Mann • Martinez • Mendez • Meyer • Mirish • Montez • Newman • Palazzo • Paskall • Porfirio • Potter • Resnick • Rodriguez • Ryder • Salinger • Schultz • Scully • Shikibu • Singh • Starros • Stern • Timoshenko • Tinker • Trent • Vanderbeek • Wallace • Whiff • Wong • Worf • Wrenn • Yar | 
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| see also: engineering personnel • medical personnel • pilots & flight control personnel • operations personnel • sciences personnel • senior staff • unnamed | ||||||||||||||||||||||||||||||||||||||||||||||