Fphargn was an individual who served on board the USS Enterprise as a security officer in the 23rd century.
In 2268, Fphargn was one of the many security and engineering personnel assigned to search for a poltergeist on the Enterprise (who in reality was James T. Kirk, whose consciousness was knocked out of his body by Yarblis Geshkerroth). Fphargn, along with Dan Miller and Organa, helped set up a proton wave-induction generator in the physics lab, and Fphargn and Organa kept watch while Miller worked on it. (TOS novel: Ghost-Walker)