Commander Brad Yacobian was a Human Starfleet officer in the 22nd century.
In 2151, he was listed as a Vehicle Development officer on the dedication plaque of the Enterprise NX-01. (ENT: "Broken Bow", dedication plaque).
In 2154, he was listed both as a Starfleet Command and Vehicle Development officer on the dedication plaque of the Columbia NX-02. (ENT: "Affliction", dedication plaque)
In January 2155, he was listed as a Mission Operations officer on directory placards at Starfleet Command's Fleet Operations Center, Sol Sector. His office was located in room #1056. (ENT: "Demons", directories)
In 2161, Yacobian, wearing an Enterprise assignment patch, attended the Federation Founding Ceremony and witnessed the speech of Captain Jonathan Archer. (ENT: "These Are the Voyages...")
Background information Edit
The character was portrayed by producer Garfield Reeves-Stevens and named after producer and unit production manager Brad Yacobian.
The name "Brad Yacobian" appeared on the nametag of producer Garfield Reeves-Stevens during his cameo in "These Are the Voyages...". Although not visible during the episode or in background material, this was revealed by Larry Nemecek in Issue #124 of Star Trek Magazine.
Reeves-Stevens was also referred to jokingly as "Commander Gar Reeves-Stevens" in the Enterprise Secrets special feature on the DVD for Enterprise season 4.