Lieutenant Boyajian was a Starfleet security officer who has served aboard the USS Enterprise-D, the USS Grissom, Deep Space 9 and the USS Excalibur. He is tall with black hair. In 2373, he was assigned to the Excalibur, under the command of Captain Mackenzie Calhoun. Lieutenant Boyajian was in the security department and was a relief tactical officer. He was cross-trained and often took over bridge positions such as Operations or the Conn. By 2380 he was on board the USS Enterprise-E. He and security officer Meyer made the mistake of attempting to subdue Worf. (TNG novel: Before Dishonor)